Figure: Coffee and Comic Books Reference: Ref 23-2 (Figure

Figure: Coffee and Comic Books Reference: Ref 23-2 (Figure: Coffee and Comic Books) Refer to the figure. The price of comic books is $0.50. Using the diagram, the marginal utility per dollar for the third comic book is:

A) 11.
B) 5.5.
C) 22.
D) 11.5.