The sales department of a car manufacturing company is rewarding its top 10 sales personnel. In the period being conside

[Vincen]

The sales department of a car manufacturing company is rewarding its top 10 sales personnel. In the period being considered for the reward, Shane sold 175 cars, which was 2 standard deviations away from the average (arithmetic mean) number of cars sold by the top 10 sales personnel. Glenn sold 130 cars, which was 1 standard deviation away from the average (arithmetic mean) number of cars sold by the top 10 sales personnel. Based on this information, how many possible values can the standard deviation of the number of cars sold by the top 10 sales personnel take?

A. 0
B. 1
C. 2
D. 3
E. 4

Answer: C

Source: e-GMAT