PQ 12.10 Suppose that a main public road with no toll booth is always congested. We would expect to see cars driving on the congested road since the marginal social cost of driving the price of driving. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a too many; is above b the optimal amount of; equals c too many; is below d too many; equals Answered Resave