Illiteracy and poor diets have been known to cost countries up to what percent of their productivity?
A) 2%
B) 5%
C) 10%
D) 20%
E) 50%
Answer: D
Illiteracy and poor diets have been known to cost countries up to what percent of their productivity?
A) 2%
B) 5%
C) 10%
D) 20%
E) 50%
Answer: D