One vendor at a craft fair wants to earn $1,200 selling various items over a weekend. The following function can be used to model the average selling price of x number of items. The mathematical domain of this function is all real numbers except 0.

Which statement describes how the reasonable domain compares to the mathematical domain?

The reasonable domain is limited to positive whole numbers.
The reasonable domain is limited to positive rational numbers.
The reasonable domain is limited to whole numbers greater than 1,200.
The reasonable domain is limited to rational numbers greater than 1,200.