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).
Q: Paragraph: Shorter wavelengths (higher frequencies) correspond to higher energies and thus hotter star temperatures.
 Question: Don is sending out wavelengths, and wants them to correspond to higher energies. In order to best do this, Don will send out wavelengths that are 
 Choices: A)longer 
B)shorter
A:
shorter