If We Allow Interpersonal Comparisons of Utility, and the Law

Multiple Choice

If we allow interpersonal comparisons of utility, and the law of diminishing marginal utility holds, then what can we reasonably suppose about the marginal utility of Bill Gates' millionth dollar?

A) It is less than the marginal utility of your hundredth dollar.
B) It is more than the marginal utility of your hundredth dollar.
C) It is equal to the marginal utility of your hundredth dollar.
D) It is equal to zero.
E) It yields higher satisfaction than your hundredth dollar.