Complete the sentence: The restaurant is famous ______ its seafood.

• A. to
• B. by
• C. for
• D. with

Answer: (C)

The sentence uses a common collocation to express the reason something is well known. When you want to say what aspect or feature people associate with someone or something as the source of its fame, you use the preposition for after famous. So The restaurant is famous for its seafood means the seafood is the thing that makes the restaurant well known.

Other prepositions don’t fit this meaning. to isn’t used to indicate the cause of fame, by would point to who or what caused the fame rather than the thing itself, and with doesn’t convey the defining reason the place is known.