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: Dana clipped her nails short, and waited for them to grow out again. When her nails reached a long length, Dana noted that the number of cells within them must have 
 Option1: decreased 
 Option2: increased 
 Explanation: As the nail grows, more cells are added at the nail bed.

A: increased
****
Q: Question: The air gets thinner when it is 
 Option1: hot 
 Option2: cold 
 Explanation: Increasing air temperature decreases atmospheric pressure.

A: hot
****
Q: Question: If Mona is building a circuit and she adds less resistors in series, what happens to the total resistance of the circuit? 
 Option1: increases 
 Option2: decreases 
 Explanation: As more resistors are added in series, the total resistance of the circuit increases.

A:
decreases
****