The table shows Elaine's utility from pizza and Pepsi. If Elaine consumes 2 slices of pizza and 3 Pepsis, her marginal utility from the fourth Pepsi is ________ units

If positive externalities are present in a free market, ________ at any output level

A) the marginal cost of production equals the average cost of production B) the marginal social cost of production exceeds the marginal private cost C) the marginal private benefit from production equals marginal social benefit D) the marginal social benefit of production exceeds marginal private benefit

The supply curve slopes upward when graphed against ________, because of ________

A) the price of the good; increasing marginal cost B) the price of the good; decreasing marginal cost C) income; increasing marginal cost D) income; decreasing marginal cost