Arthur Bach Is Worth $780 Million Dollars

Arthur Bach is worth $780 million dollars.He goes into an upscale men's store and buys 32 green sweaters, each costing $200.If Arthur has maximized his utility from this purchase, what is the marginal utility of the thirty-third green sweater?

A) cannot tell
B) greater than $200
C) less than $200
D) 0
E) $200