This Graph Shows Three Different Budget Constraints: A,B,and C

Multiple Choice

This graph shows three different budget constraints: A,B,and C.
If Doug is on budget constraint C in the graph shown,what would cause it to shift to budget constraint B?

A) Doug loses his job.
B) Doug finds soda at a warehouse outlet for a lower price.
C) Doug's grocery store raises the price of milk by 10 percent.
D) Doug's grocery store has lowered all prices by 33 percent.