Answer:
C). Begin sentences with different parts of speech.
Step-by-step explanation:
As per the question, the most influential way of differentiating the sentences is to 'begin the sentences with different parts of speech.' It would not only add variety to the sentences but also help in enhancing the quality of writing. For example; the first sentence begins with the noun 'our community museum', the next sentence can begin with the pronoun to avoid repetition of 'noun 'the museum' and add variety. Thus, the correct answer is option C.