Suppose that total carbohydrate intake in 12- to 14-year-old boys is normally distributed with a mean of 120 g/1000 calories and a standard deviation of 20 g/1000 calories.

Approximately what percent of boys in this age range have carbohydrate intake less than 100 g/1000 calories?

O 16%
O 2.5%
O 50%
O 18.65%