In the sentence "Perhaps the most startling theory to come out o

In the sentence "Perhaps the most startling theory to come out of kinesics, the study of body movement, was suggested by Professor Birdwhistell." The meaning of kinesics can be inferred from the clue of（ ）
A、definition
B、synonymy
C、antonymy
D、hyponymy
【正确答案】：A
【题目解析】：在这句话中，“也许运动学中最令人吃惊的理论，即人体运动的研究，是由伯德威尔教授提出的。”单词kinesics（体势学）的意义可以从定义线索中推断出来。