試題詳解

50. Which of the following can be added to the end of this passage and serve as a concluding remark?
(A) Dogs have about two times as many olfactory receptors, compared to humans.
(B) Traditional medicine provides a way to develop our sense of smell.
(C) Our senses are operated by our subliminal awareness.
(D) It’s time to give our sense of smell the recognition it deserves.