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: Plug-in hybrids run for a longer time on electricity and so are less polluting than regular hybrids.
 Question: If Mona sells her gas car and switches to an electric car, what will happen to the amount of pollution she produces? 
 Choices: A)increase 
B)decrease
Student:
decrease