や

コーヒー ___ 紅茶が 好きです。

The particles "や" (ya), "と" (to), and "か" (ka) connect items. "や" lists a few examples among others, implying more. "と" lists all items exhaustively. "か" means "or," offering choices between coffee and tea.

助詞「や」は並列の例を、「と」は並列の全てを、「か」は選択肢を示します。状況に応じて使い分けます。例：「本やペン。」