Isaac uses a function to model the relationship between time and the position of a rock dropped into an empty water well. The position of the rock is a function of time. What is the domain of this function?
А
real numbers less than or equal to the total time for the rock to fall
B
integer numbers less than or equal to the total time for the rock to fall
real numbers greater than 0 and less than or equal to the total time for the rock to fall
D
integer numbers greater than 0 and less than or equal to the total time for the rock to fall