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.

Question: If Jim is listening to music and he decreases the energy to the speakers, what happens to the loudness of the sound coming out of the speakers? 
 Option1: decreases 
 Option2: increases 
 Explanation: Amplified sound waves have more energy, which increases the intensity and loudness of the sounds, so they are easier to hear.
decreases

Question: If Milo wants to make his water saltier and begins adding salt to the glass, what happens to the density of the glass of water? 
 Option1: decreases 
 Option2: increases 
 Explanation: If salt is added to a volume of water, there are more molecules in the same volume, so the water is denser.
increases

Question: Will ran in a race. His pulse rate decreases, providing _____ oxygen to his cells. 
 Option1: less 
 Option2: more 
 Explanation: This causes the delivery of less oxygen to the cells, and this stimulates the heart rate via adrenalin, so that pulse rate increases in an effort to deliver enough oxygen to cells.

less