Suppose That 25 Units of X and 16 Units of Y

Multiple Choice

Suppose that 25 units of X and 16 units of Y give a consumer the same satisfaction as 15 units of X and 18 units of Y.Then

A) the consumer can exchange five units of X for one unit of Y and keep utility unchanged.
B) the consumer can exchange one unit of X for 1/5 unit of Y and keep utility unchanged.
C) the market rate of exchange of X for Y is 1/5.
D) both a and b
E) all of the above