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

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
The organs of taste are the________that are mainly located on the tongue.

A. groups of cells are taste buds

B. Taste buds are groups of cells

C. Taste buds, these are groups of cells

D. Taste buds, groups of cells