The Distribution of the Number of Dill Pickle Spears in a Gallon

Multiple Choice

The distribution of the number of dill pickle spears in a gallon container is approximately Normal with mean 110 and standard deviation 10.
If a container had to have at least 90 spears to pass quality control, approximately what percent of the containers failed? (That is, had fewer than 90 spears) ?

A) 2.5 percent
B) 5 percent
C) 16 percent
D) 68 percent
E) 95 percent