In a certain adult population, cerebral blood flow is considered to be approximately normally distributed with a mean of 71 and a standard deviation of 17.

An individual is considered to be at risk of developing a cardiovascular event if his or her cerebral blood flow level is below 41.

Out of 8000 normal individuals, how many individuals will be considered at risk for developing cardiovascular disease?

a) 382 b)205 c) 310 d) 300