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: Compared with a less powerful device, a more powerful device can either do more work in the same time or do the same work in less time.
 Question: If Jim downgrades his computer to a less powerful model, what happens to the amount of work it can perform? 
 Choices: A)it can perform more work then before 
B)it can perform less work then before
it can perform less work then before