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: The blood vessels near the top of the skin do what when it's cool? 
 Option1: enlarge 
 Option2: contract 
 Explanation: When your brain senses that your body temperature is increasing, it sends messages to the blood vessels in the skin to increase in diameter.

A: contract
****
Q: Question: _____ input force will be needed on an inclined plane with a very steep slope. 
 Option1: more 
 Option2: less 
 Explanation: The more gradual the slope of the inclined plane, the less input force is needed and the greater the mechanical advantage.

A: more
****
Q: Question: Eric pulls an electron away from the nucleus of an atom. The electron _____ energy. 
 Option1: loses 
 Option2: gains 
 Explanation: As you go farther from the nucleus of an atom, the electron levels have more and more energy.

A:
loses
****