💡 Detailed Explanation
"Arikita_ri_" describes something (a thing, idea, story, design, etc.) as being commonplace, ordinary, or lacking in originality, often with a slightly negative connotation of being uninspired, uncreative, or boring. Choice 1 correctly uses it to describe stories that are unoriginal and thus boring.
Distractor 2: "新入社員の研修では、ありきたりなビジネスマナーを丁寧に指導された。" - While business manners are common and foundational, 'arikitari' implies they are unoriginal, uninspired, or trite, which is not the appropriate nuance for basic, essential skills. "基本的な" or "一般的な" would be more suitable.
Distractor 3: "このホテルの内装はありきたりで、豪華さはないが、清潔感があり快適だった。" - 'Arikita_ri_' implies a lack of creativity or distinction, often with a negative undertone of being uninspired. While the interior might not be luxurious or unique, describing it as 'arikitari' might be too strong or carry an inappropriate nuance when emphasizing its positive attributes like cleanliness and comfort. "平凡な" or "特徴のない" might be more neutral and fitting.
Distractor 4: "地球が丸いというのはありきたりな事実だが、昔は信じられていなかった。" - 'Arikita_ri_' applies to expressions, ideas, or things that are trite, overused, or unoriginal. For a universally accepted, fundamental fact like "the Earth is round," words like "周知の事実" (well-known fact) or "当たり前の事実" (obvious fact) are more appropriate. It's not about the fact itself being unoriginal, but about a statement or idea being uninspired if it were presented as new.