This question is examining the understanding of collocations in English vocabulary. The correct answer is 'A. Make a decision' because 'make a decision' is a fixed collocation. Option B is incorrect because 'do the homework' is a phrasal verb, not a fixed collocation. Option C is incorrect because 'go to the cinema' is a common phrase but not a fixed collocation. Option D is incorrect because 'eat a book' is an idiom and not a collocation. The critical concept is to recognize the correct use of collocations in English.