If the number of firms producing electric cars increases and consumer preference for electric cars increases, the equilibrium quantity of electric cars will definitely increase

Which of the following statements is correct? I. The Fed can periodically and without warning examine member commercial banks to ensure that they are conforming to current banking standards. II The Fed helps the government collect certain tax revenues and aids in the purchase and sale of government securities.

A) I only B) II only C) Both I and II D) Neither I nor II

If marginal utility of apples is diminishing and is a positive amount, consuming one more apple will cause

A) total utility to decrease. B) a consumer to get no satisfaction from consuming apples. C) a consumer's total utility to increase. D) a consumer to go beyond her optimal consumption of apples.