[单选题]
In a cloud formation, srih er0)x*l:0 2ngjvwater vapor condenses i;+ :cpa xtz g4bkjlo+7nto water droplets which get bigger and bigger until it rains. This will causcxpg: 7z;l+ 4 kjbaot+e the temperature of the air in the clouds to
A. increase.
B. decrease.
C. stay constant.
D. freeze.
