Mark the letter A, B, C, or D on...

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the semtence that best combines each pair of sentences in the following questions

A. People should both cut down the trees and throw rubbish in the park

B. People should neither throw rubbish nor cut down the trees in the park

C. People should throw rubbish and cut down the trees in the park

D. People should either throw rubbish or cut down the trees in the park