Total Risk Rank the Following Three Stocks by Their Level

Multiple Choice

Total Risk Rank the following three stocks by their level of total risk,highest to lowest.Rail Haul has an average return of 8 percent and standard deviation of 10 percent.The average return and standard deviation of Idol Staff are 10 percent and 20 percent; and of Poker-R-Us are 6 percent and 15 percent.

A) Rail Haul, Poker-R-Us, Idol Staff
B) Idol Staff, Rail Haul, Poker-R-Us
C) Poker-R-Us, Idol Staff, Rail Haul
D) Idol Staff, Poker-R-Us, Rail Haul