Question: After a soccer game, Brittany sat under a fan because she was hot. Under the fan, she felt cooler than before. Which explains why Brittany felt cooler under the fan?

  Options: 
 A. Air moving under the fan is cooler than air that is still.
 B. The evaporation of sweat absorbs heat from the skin.
 C. Water vapor from the fan condenses on the skin.
 D. The fan speeds convection currents in the air. 
Answer: B