$.$ On January $15,20$X$5,$ Rico Co$.$ Declared its annual cash dividend on common stock for the year ended January $31,20$X$5.$ The dividend was paid on February $9,20$X$5,$ to shareholders of record as of January $28,20$X$5.$ On what date should Rico decrease Retained earnings by the amount of the dividend?

o January $15,20$X$5.$

o January $31,20$X$5.$

o January $28,20$X$5.$

o February $9,20$X$5.$