When Describing Employee Performance, a Human Resource Professional Would Say

When describing employee performance, a human resource professional would say it follows a normal distribution if the graph of the data set:

A) when folded at the highest point of the bell-shaped curve, the two halves would match
B) shows that 95% of the data will fall within three standard deviations of the mean
C) all of these apply to normal distribution
D) the bell-shaped curve is asymmetrical