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: The more curved the surface of a lens is, the more it refracts the light that passes through it.
 Question: In a science class, the professor demonstrates refraction to the class. First, the professor shows a curved lens from a binocular, and then a flat pane of glass, demonstrating that 
 Choices: A)the curved lens refracts less light 
B)the flat pane refracts less light.
Student:
the flat pane refracts less light.