please answer the following question for me.

At pointU, the marginal utility for consumers is:

$1

$25

$50

$75

$100

here is the graph for it:

Quesuu!! Price $2 $1 - - U D 50 100 Quantity At point U, the marginal utility for consumers is: O A. $75 B. $50 O C. $100 O D. $25 O E. $1