The correct choice is **含む (fukumu)**, which means 'to include' or 'to contain'. It is used to describe a state where one thing is a component or part of a larger whole. This word is perfect for situations like a price including tax, a report containing data, or a liquid containing a certain substance. Common Mistakes / Nuances: ❌ : This verb means 'to add'. It implies the action of taking something separate and adding it to an existing thing or group, rather than describing a state of inclusion. For example, you would **加える** salt to soup (スープに塩を**加える**), but a price **含む** tax (価格は税金を**含む**). The focus is on the action of adding, not the state of being part of the whole. ❌ : This verb means 'to accompany', 'to go with', or 'to be associated with'. It is used when two things happen or exist together, often suggesting a consequence or a natural pairing. For example, economic growth is accompanied by inflation (経済成長はインフレを**伴う**). It doesn't mean one thing physically contains another; rather, they are linked phenomena. ❌ : This verb means 'to mix' or 'to blend'. It is used when combining multiple elements to form a single, often uniform, substance where the original components may become indistinguishable. For example, you **混ぜる** flour and eggs (小麦粉と卵を**混ぜる**). This is different from 'including' a distinct component within a total, like tax in a price. ❌ : While **込める (komeru)** can be translated as 'to include', its primary meaning is to put or load something *into* another, often with an abstract or emotional nuance. It's frequently used for putting feelings, thoughts, or effort into an action or object. For example, to put your heart into a gift (プレゼントに心を**込める**). It doesn't fit the context of a simple, factual inclusion like a price containing tax.

正解は**含む（ふくむ）**です。これは「to include」や「to contain」という意味で、あるものがより大きな全体の一部や構成要素である状態を表すときに使います。料金に税金が含まれる、レポートにデータが含まれる、液体に特定の物質が含まれる、といった状況に最適な言葉です。 Common Mistakes / Nuances: ❌ : This verb means 'to add'. It implies the action of taking something separate and adding it to an existing thing or group, rather than describing a state of inclusion. For example, you would **加える** salt to soup (スープに塩を**加える**), but a price **含む** tax (価格は税金を**含む**). The focus is on the action of adding, not the state of being part of the whole. ❌ : This verb means 'to accompany', 'to go with', or 'to be associated with'. It is used when two things happen or exist together, often suggesting a consequence or a natural pairing. For example, economic growth is accompanied by inflation (経済成長はインフレを**伴う**). It doesn't mean one thing physically contains another; rather, they are linked phenomena. ❌ : This verb means 'to mix' or 'to blend'. It is used when combining multiple elements to form a single, often uniform, substance where the original components may become indistinguishable. For example, you **混ぜる** flour and eggs (小麦粉と卵を**混ぜる**). This is different from 'including' a distinct component within a total, like tax in a price. ❌ : While **込める (komeru)** can be translated as 'to include', its primary meaning is to put or load something *into* another, often with an abstract or emotional nuance. It's frequently used for putting feelings, thoughts, or effort into an action or object. For example, to put your heart into a gift (プレゼントに心を**込める**). It doesn't fit the context of a simple, factual inclusion like a price containing tax.