Answer to What does the phrase “缓和” refer to?

Correct Answer: D

Analysis:

A. 消失(xiāoshī) is the word for “Vanish.” The character 消(xiāo) means to eliminate and 失(shī) means to lose or miss.

B. 激化(jīhuà) is the word for “Become acute.”

The character 激(jīhuà)means to arouse and 化(huà)means to turn or change into.

C.