instruction:
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:
Question: Evan crawls through the toxic waste dump. His Geiger counter clicks very slowly. The levels of radiation are likely 
 Option1: high 
 Option2: low 
 Explanation: The faster the clicks of a Geiger counter occur, the higher the level of radiation.
answer:
low


question:
Question: If you keep something whole before putting it into water it will dissolve 
 Option1: slower 
 Option2: faster 
 Explanation: Therefore, increasing the surface area of solid reactants increases the reaction rate.
answer:
slower


question:
Question: John was viewing a patient's vital signs at the hospital. He could see clearly that the more oxygen to the cells, the pulse rate would become 
 Option1: Higher 
 Option2: Lower 
 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.
answer:

Lower