TASK DEFINITION: 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.
PROBLEM: Question: Rita added more food to the box. It is now _____ to move.
Option1: harder
Option2: easier
Explanation: The full box is harder to move because it has greater mass and therefore greater inertia.

SOLUTION: harder

PROBLEM: Question: Eric is researching near the Equator. Rob is researching near the North Pole. The warmest area is
Option1: Eric's
Option2: Reid's
Explanation: Areas near the equator are warmer than areas near the poles because they receive more direct sunlight.

SOLUTION: Eric's

PROBLEM: Question: Leo notices a large amount of stored glucose in his cell. Ray notices zero stored glucose in his cell. Whose cell likely underwent more photosynthesis?
Option1: Leo
Option2: Ray
Explanation: As photosynthesis increases, the amount of stored glucose in the guard cells increases.

SOLUTION:
Leo