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).

[EX Q]: Paragraph: Alkanes with more carbon atoms have higher boiling and melting points, so some of them are solids at room temperature.
 Question: Kathy did some experiments on two different alkanes and one of the alkanes had twice as many carbon atoms than the other. She would notice that which alkane would require a higher temperature to melt 
 Choices: A)alkane with fewer carbon atoms 
B)alkane with more carbon atoms?
[EX A]: alkane with more carbon atoms?

[EX Q]: Paragraph: More pollutants mean poorer air quality.
 Question: Michael is studying the air quality of various cities. He finds that there are many more pollutants in the air in Mexico City, than there are in the air of Chicago. Therefore, the air quality will be higher in 
 Choices: A)Chicago 
B)Mexico City
[EX A]: Chicago

[EX Q]: Paragraph: The closer the charged objects are, the stronger the electrostatic force.
 Question: Robby noticed a weak electrostatic force between two charged objects. He wanted to increase the strength of this force. So how should he position them? 
 Choices: A)Closer together 
B)Farther apart
[EX A]:
Closer together