Teacher: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).
Teacher: Now, understand the problem? Solve this instance: Paragraph: In electromagnetic waves with higher frequencies, photons have more energy.
 Question: Don is looking at electromagnetic waves, and sees that the one's he observing have lower frequencies. Don is able to know then that the photons have energy that is 
 Choices: A)higher 
B)lower
Student:
lower