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.

Ex Input:
Question: Jeff gained some blood in a car crash and was given a transfusion in the hospital to replace the blood. Jeff's blood pressure will be higher
Option1: when he lost the blood
Option2: after he had blood replaced.
Explanation: As blood volume in the body increases, blood pressure increases.

Ex Output:
when he lost the blood

Ex Input:
Question: Compared to the Sun, would the planet Earth have
Option1: greater inertia
Option2: less inertia?
Explanation: Objects with greater mass have greater inertia.

Ex Output:
less inertia?

Ex Input:
Question: Dave was looking lenses for his new digital camera. He saw on the specifications that the less curved the lens is, the amount of light refracted
Option1: increases
Option2: decreases
Explanation: The more curved the surface of a lens is, the more it refracts light.

Ex Output:
decreases