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 someone has a larger than average physical heart then it will beat _____ in order to pump blood. 
 Option1: more 
 Option2: less 
 Explanation: When the heart expels more blood with each stroke, the heart has to beat less often in order to maintain the same volume of blood flow.
less

Question: Terry has a strong base, some bleach, and a weak base, some water. Which likely contains more hydroxide ions? 
 Option1: bleach 
 Option2: water 
 Explanation: A stronger base produces more hydroxide ions than a weaker base.
bleach

Question: For radio transmissions, shorter wavelength waves have 
 Option1: higher or 
 Option2: lower frequencies. 
 Explanation: Longer wavelength electromagnetic waves have lower frequencies, and shorter wavelength waves have higher frequencies.

higher or