Suppose Fred's Marginal Utility of an Extra Dollar of Income

Suppose Fred's marginal utility of an extra dollar of income is 56, and Sally's is 34. If a dollar is taken from

A) Sally and given to Fred, the economy's total utility will rise by 22 units
B) Fred and given to Sally, the economy's total utility will rise by 22 units
C) Sally and given to Fred, the economy's total utility will rise by 34 units
D) Sally and given to Fred, the economy's total utility will rise by 56 units
E) Fred and given to Sally, the economy's total utility will rise by 34 units