Mark the letter A, B, C, o...

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

A. Many insects make sounds so that they have no vocal apparatus in their throat

B. The reason why many insects make sounds is that they have no vocal apparatus in their throats

C. Since many insects can make sounds, they have no vocal apparatus in their throats

D. Many insects make sounds despite having no vocal apparatus in their throats