Assume That Workers Are of the Same Race and Either

Assume that workers are of the same race and either male or female.Male and female workers possess the same stock of human capital and hence they are equally productive.The wage rate for male workers is $10 per hour and for female workers the wage rate is $9 per hour.
-Refer to the information above.The ratio of the female wage rate to the male wage rate (commonly called the wage gap) is

A) 90%.
B) 11%.
C) 10%.
D) 9%.
E) 1%.