You are given a question or fill-in-the-blank question, two answer options (Option1 and Option2) and an Explanation. Your task is to find the correct answer (return the string of the correct option, not option1/2) for the given question from the given options and using explanation.

Q: Question: If Jim loses a lot of blood from a cut he sustains, what will happen to his blood pressure? 
 Option1: it will become lower 
 Option2: it will become higher 
 Explanation: If blood volume in the body decreases, blood pressure decreases.

A: it will become lower
****
Q: Question: If a person sank lower within the mesosphere, would the temperature 
 Option1: increase 
 Option2: decrease 
 Explanation: In the mesosphere, temperature decreases as altitude increases.

A: increase
****
Q: Question: Sandra is in a dark building and then suddenly goes exits onto a sunny street. Sarah's pupils will do this in response to the new bright light 
 Option1: shrink 
 Option2: grow 
 Explanation: The pupil automatically gets bigger or smaller to let more or less light in as needed.

A:
shrink
****