Henry's Grandfather Keeps His House Very Warm,causing Henry to Perspire

Multiple Choice

Henry's grandfather keeps his house very warm,causing Henry to perspire.Henry notices as he walks up the steps to his grandfather's house that he has already begun to perspire.What is the unconditioned response (UCR) in this situation?

A) Perspiring walking up the steps
B) Perspiring inside the warm house
C) The warm house
D) The steps to the house