At Netflix, the Time It Takes for a Returned DVD

Multiple Choice

At Netflix, the time it takes for a returned DVD to be re-filed and for the next DVD to be submitted for shipping to the customer follows a bell-shaped pattern, with a mean of 194 seconds and a standard deviation of 42 seconds.What proportion of the "turnaround" times are less than 150 seconds?

A) .1823
B) .1459
C) .1312
D) .0782
E) .0536