If an Economy's Growth Rate of Real GDP Is 3

If an economy's growth rate of real GDP is 3 percent per year and the growth rate of the population is 2.5 percent per year,the growth rate of real GDP per person is

A) 3 + 2.5 = 5.5 percent per year.
B) [(3 - 2.5) ÷ 2.5] × 100 = 20 percent per year.
C) [(2.5 - 3) ÷ 3] × 100 = 16.6 percent per year.
D) 3 - 2.5 = 0.5 percent per year.
E) 2.5 - 3 = -0.5 percent per year.