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: When we look deep into the earth through a volcano the temperature 
 Option1: decreases 
 Option2: increases 
 Explanation: As the rocks move deeper into the Earth, temperature and pressure increase.

A: increases
****
Q: Question: When a star is moving away from a planet, the star will be pulled into it if the gravitational force is 
 Option1: weaker 
 Option2: stronger 
 Explanation: The closer objects are to each other, the stronger the gravitational force between them.

A: weaker
****
Q: Question: Mike takes deep breaths, and knows that his chest volume is fairly sizable. Considering his chest size, the air pressure outside the lungs, compared to the air pressure inside, is 
 Option1: lower 
 Option2: higher 
 Explanation: During inhalation, because the chest volume is larger, the air pressure inside the lungs is lower than the air pressure outside.

A:
higher
****