In which of the scenarios below can you reverse the dependent and independent variables while keeping the interpretation of the slope meaningful?
a) as the time spent swimming increases, the number of calories burned in the body increases.
b) as the number of days increase, the number of years increase.
c) as the number of months increase, the amount of interest earned on a bank deposit increases.
d) as the number of pages in a book increases, the weight of the book increases.