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: If you use more force when accelerating a car it will go 
 Option1: slower 
 Option2: faster 
 Explanation: The harder the batter hits the ball, the greater will be its acceleration.

SOLUTION: faster

PROBLEM: Question: As the plane dropped altitude, the passengers felt _____. 
 Option1: cooler 
 Option2: warmer 
 Explanation: In the troposphere, temperatures decrease as altitude increases.

SOLUTION: warmer

PROBLEM: Question: If a system gives off a minimum of heat then it is 
 Option1: effective 
 Option2: wasted 
 Explanation: The greater the wasted output energy, the less efficient the system.

SOLUTION:
effective