As a consumer you believe yourself to act rationally, optimally and self-interestedly. You like ice cream and value a pint at $7. Usually you buy a pint each week at $4. This week however, the price jumped to $5 a pint. What would you do? a. ​buy the ice cream since the price is still below your maximum willingness to pay b. ​buy the ice cream since even at the new price it gives you a positive amount of consumer surplus c. ​not buy the ice-cream since the price is now higher d. ​both A&B