You will be given a definition of a task first, then some input of the task.
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: Water also gets colder as you go deeper.
 Question: Anna swims across the surface of a lake and later she plunges several feet below the surface to explore. At which depth will the temperature of the water be warmer 
 Choices: A)surface of water 
B)several feet deep in water?
Output:
surface of water