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.
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Question: Question: After Sarah finishes her run, she notices that her blood is really pumping. Sarah can know that since it's a hot day, she's giving off what kind of heat compared to usual? 
 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.

Answer: more


Question: Question: Will decreases the population of his model of the world's population. The amount of water scarcity, if no other variables are changed, will likely go 
 Option1: up 
 Option2: down 
 Explanation: Many of the worlds people live with water scarcity, and that percentage will increase as populations increase and climate changes.

Answer: down


Question: Question: Bob moves a table across the floor. After, he moves a smaller chair. Which piece of furniture had more friction? 
 Option1: chair 
 Option2: table. 
 Explanation: Heavier objects also have more friction because they press together with greater force.

Answer:
table.