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: Electromagnetic waves with shorter wavelengths have higher frequencies and more energy.
 Question: Molly was viewing electromagnetic waves and noticed a wave with a wavelength of 20nm and another with 10nm. Which likely has less energy? 
 Choices: A)the 20nm wave 
B)the 10nm wave
Student:
the 20nm wave