An increase in demand will cause a(n)

Freeways in large cities tend to be congested during rush hours to the point where offer little or no advantage over non-freeway routes because

A) drivers generally ignore marginal benefits and costs. B) drivers usually ignore marginal benefits and costs during rush hours. C) no monetary fee is charged for the use of freeways during rush hours. D) not enough freeways have been constructed due to special interests' control of the government. E) people need to get to work and the demand for freeway travel is consequently inelastic during rush hours.

Which function of money eliminates the need for multiple prices for each good as in a barter system?

A) store of value B) standard of deferred payment C) unit of account D) valuable relative to its weight