Table 2.1 -A Group of People Has Formed a House Cleaning and Cleaning

Multiple Choice

Table 2.1
-A group of people has formed a house cleaning and yard maintenance business.The number of houses or yards that they can clean or maintain in any given day is depicted in Table 2.1.As the group cleans more houses,the opportunity cost of cleaning houses

A) falls.
B) rises.
C) stays the same.
D) is the sum of the opportunity costs of cleaning all the houses prior to that one.