If Janice Earns $50,000 a Year and Pays $500 in Taxes,and

If Janice earns $50,000 a year and pays $500 in taxes,and Cam earns $100,000 a year and pays $20,000 in taxes,then Janice's effective tax rate is _____ and Cam's effective tax rate is____.

A) 2%, 20%.
B) 5%, 20%.
C) 5%, 10%.
D) 10%, 10%.