A definite advantage of using water as a fire extinguishing agent is its characteristic of（）.

A definite advantage of using water as a fire extinguishing agent is its characteristic of（）.
A.alternate expansion and contraction as water in a liquid state becomes a vapor
B.absorption of smoke and gases as water is converted from a liquid to a vapor
C.rapid contraction as water is converted from a liquid to a vapor
D.rapid expansion as water absorbs heat and changes to steam
正确答案：rapid expansion as water absorbs heat and changes to steam