A consumer ate 2 pints of ice-cream and believe that his total utility is valued at $24.87. He then decides that consuming an additional pint would make him ill and therefore is not necessary. As a result he assign a marginal utility is negative $1.77 to that extra unit. What would be his total utility if he change his mind and have the ice cream?

a.

Decrease to $24.10

b.

Increase to $25.64

c.

Increase to $26.64

d.

Decrease to $23.10