Acetaminophen is a medicine commonly used to relieve pain and reduce fever. For a patient who takes an initial dose of 0.325 grams, the function A(t)=0.325(0.76)t models the amount of acetaminophen, in grams, in the body after t hours. According to the model, how does the amount of acetaminophen in the body change over time?
a) the amount decreases by 76% each hour
b) the amount decreases by 24% each hour
c) the amount decreases by 0.325% each hour
d) the amount decreases by 0.24% each hour
e) the amount decreases by 0.76% each hour
f) the amount decreases by 32.5% each hour