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: Rich breathed out. When he breathes _____ his chest seems larger. 
 Option1: in 
 Option2: out 
 Explanation: Inhaling, or breathing in, increases the size of the chest, which decreases air pressure inside the lungs.

A: out
****
Q: Question: If Jim is an endotherm would his body give off _____ heat if the blood flow to the surface of his body were decreased? 
 Option1: more 
 Option2: less 
 Explanation: On a hot day, an endotherm may give off more heat by increasing blood flow to the surface of the body.

A: less
****
Q: Question: If Mona is pushing a sled and she begins to get tired, her energy levels fall. What happens to the movement of the sled? 
 Option1: increase 
 Option2: decrease 
 Explanation: As the liquid particles lose energy, their movement slows down even more. As their movements become slower and slower, the attractive forces between become stronger.

A:
decrease
****