Suppose That 2 Units of X and 8 Units of Y

Multiple Choice

Suppose that 2 units of X and 8 units of Y give a consumer the same satisfaction as 4 units of X and 2 units of Y.Then

A) the consumer is willing to give up 3 units of Y to obtain 1 more unit of X.
B) the consumer is willing to give up 1 unit of Y to obtain 3 more units of X.
C) the marginal rate of substitution of Y for X is 3.
D) both a and c
E) both b and c