PLEASE HELP!!!
dionne washington wants to sell natural fruit flavored water at her neighborhood block party she wrote the amount of money she spent as a function of the number of bottles sold which set of numbers would be an appropriate domain for dionnes function
a) 0,1,2,3,4,...
b) ..., -4,-3,-2,-1,0
c) ..., -3,-2,-1,0,1,2,3, ...
d) ..., -3.5,-2.5,-1.5,0,1.5,2.5,3.5,....