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: Solar power is expensive, but as demand increases technology improves and costs decrease.
 Question: As less solar panels are made the price of them will 
 Choices: A)go up 
B)go down
Output:
go up