Suppose you examine the central bank's balance sheet and observe that since the previous day, reserves had fallen by $50 million.In addition, on the asset side of the central bank's balance sheet, securities had fallen by $50 million.What activity did the central bankcarryout earlier in the day to lead to these changes in the balance sheet?

The central bankconducted an open market

(Click to select)

sale

purchase

of $50 million with a commercial bank. The

(Click to select)

purchase

sale

of the securities would involve $50 million of securities being

(Click to select)

removed from

added to

the central bank's balance sheet.There would be

(Click to select)

an increase

a fall

of $50 million in reserves to reflect the related payment

(Click to select)

by

to

the commercial bank

(Click to select)

from

into

its reserve account.