Quartz Instruments had retained earnings of $$350,000$ at December $31,2020.$ Net income for $2021$ totaled $$210,000,$ and dividends declared for $2021$ were $$50,000.$ How much retained earnings should Quartz report at December $31,2021?$

A$.$ $$560,000$

B$.$ $$400,000$

C$.$ $$510,000$

D$.$ $$350,000$