Function n represents the number of visitors in an art gallery on a Monday as a function of hours since the gallery opened. Here is the graph of function n.

Based on the graph and the situation which domain and range make sense for function n?
A. Domain all numbers from 0 to 85. Range: all numbers from 0 to 14.
B. Domain whole numbers only from 0 to 14. Range: whole numbers only from 0 to 85.
C. Domain all numbers from 0 to 10. Range: whole numbers only from 0 to 50.
D. Domain whole numbers only from 0 to 10. Range : all numbers from 0 to 50.