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).

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?

A: alkane with more carbon atoms?
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Q: Paragraph: Inhaling, or breathing in, increases the size of the chest, which decreases air pressure inside the lungs.
 Question: If Mona is running a race and her chest expands, what happens to the amount of air pressure in her lungs? 
 Choices: A)increases 
B)decreases

A: decreases
****
Q: Paragraph: When your brain senses that your body temperature is increasing, it sends messages to the blood vessels in the skin to increase in diameter.
 Question: The blood vessels near the top of the skin do what when it's cool? 
 Choices: A)enlarge 
B)contract

A:
contract
****