Given the task definition and input, reply with output. You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Paragraph: In transipration, at warmer temperatures water molecules move faster, and the rate of evaporation from stomata is therefore much faster.
 Question: Donna wants to have her water molecules move slower hrough transpiration, so she will make the temperature 
 Choices: A)cooler 
B)warmer
cooler