57.
Your Answer is
Correct Answer is C
Explanation
The sentence before the underlined part is a complete sentence, and the underlined part is the adverbial clause of the sentence. According to the semantics, the subject of admire here is community leaders, the attributive clause is applied, and C is correct.
Item A: admiring...is a sentence adverbial, indicating the result of the previous main clause, and the semantic error.