The is the institution designed to control the quantity of money in the economy and also to oversee the:

a. ffiec; day-to-day democratic control of policy.
b. fomc; passing of tax and spending bills.
c. fdic; responsibility for deposit insurance.
d. central bank; safety and stability of the banking system.

d. Central Bank; safety and stability of the banking system.

Explanation:

The central bank is the institution that handles the currency, the money supply and controls the banking system. This institution controls the quantity of money in the economy because it is in charge of printing the currency of the country and can put money in the market when there is not enough cash and can put it out when there is excess. Also, it is the lender of last resort for the commercial banks and sets the interest rates with the goal of having a low inflation. Through all of this, the central bank helps maintain the stability of the system.

88 because 4 plus 4 equals 8. 40 plus 40 equals 80. 80 plus 8 equals 88

an important city to the south and the region's capital is c. kiev