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: As Earth's climate becomes cooler it will develop _____ varieties of vegetation? 
 Option1: less 
 Option2: more 
 Explanation: The warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering.

SOLUTION: less

PROBLEM: Question: Shane wants a field that is very strong. In order do achieve this goal, Shane needs to draw 
 Option1: less field lines 
 Option2: more field lines 
 Explanation: The more field lines that are drawn, the stronger the field.

SOLUTION: more field lines

PROBLEM: Question: If a muscle is exercised, it will become 
 Option1: bigger 
 Option2: smaller 
 Explanation: Muscles that are exercised are bigger and stronger than muscles that are not exercised.

SOLUTION:
bigger