In the Following Figure,a Consumer Faces a Market Price of X

Multiple Choice

In the following figure,a consumer faces a market price of X equal to $6,a market price of Y equal to $6,and the consumer's budget is $180.In order for this consumer to choose the corner solution at point E,which of the following must occur?

A) price of X must rise to $18.
B) price of X must fall to $3.
C) price of Y must rise to $9.
D) price of Y must rise to $18.
E) both b and d must occur.