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: The closer objects are, the stronger the gravitational pull between them.
 Question: Does a ball in space have more or less gravity on it than on earth? 
 Choices: A)more 
B)less
[EX A]: less

[EX Q]: Paragraph: A sunscreen with a higher SPF value protects the skin longer.
 Question: John was analyzing some of the results from his sunscreen study. He found that a lower SPF protects the skin 
 Choices: A)Shorter 
B)Longer
[EX A]: Shorter

[EX Q]: Paragraph: The higher up a food chain that humans eat, the greater the levels of toxic metals they take in.
 Question: Sarah ate a salad for dinner, Sarah's levels of toxic metals have 
 Choices: A)decreased. 
B)increased or
[EX A]:
decreased.