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: Longer wavelength electromagnetic waves have lower frequencies, and shorter wavelength waves have higher frequencies.
 Question: Shirley wants to make sure that her frequencies are high, so she will have her wavelengths for the electromagnetic waves be 
 Choices: A)shorter 
B)longer
A:
shorter