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.

Question: Mary loves to dive in the ocean. What will happen to the water as she dives deeper? 
 Option1: darker 
 Option2: lighter 
 Explanation: The deeper you go, the darker the water gets.
darker

Question: If Jim starts exercising and performs no anaerobic exercises, would his muscles get 
 Option1: bigger 
 Option2: smaller 
 Explanation: Anaerobic exercises cause muscles to get bigger and stronger.
smaller

Question: If Ben exercises daily, and Anna exercises only weekly, who has a stronger heart? 
 Option1: Ben 
 Option2: Anna 
 Explanation: When a person exercises regularly, and is fit, the heart undergoes certain long-term adaptations. The heart muscle gets stronger, and expels more blood with each contraction.

Ben