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: 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.
[A]: darker


[Q]: Question: Tina is drinking water. Tina blows slowly on the surface of the water. The faster she blows, the _____ the waves are. 
 Option1: smaller 
 Option2: bigger 
 Explanation: The faster, longer, and farther the wind blows, the bigger the waves are.
[A]: smaller


[Q]: Question: If one trains aerobic exercises, their heart muscles will become 
 Option1: stronger 
 Option2: weaker 
 Explanation: Aerobic exercise increases the size and strength of muscles in the heart and helps all your muscles develop greater endurance.
[A]:
stronger