Mark's Marginal Utility of a Third Waffle Is 10 Units

Multiple Choice

Mark's marginal utility of a third waffle is 10 units and marginal utility of a second slice of ham is 30 units. If Mark eats the third waffle, which of the following statements is true?​

A) The price of a waffle is five times more than the price of a slice of ham.
B) The price of a waffle is less than one-fourth the price of a slice of ham.
C) The price of a waffle is less than one-third the price of a slice of ham.
D) The price of a waffle is four times more than the price of a slice of ham.
E) The price of a waffle is three times more than the price of a slice of ham.