jakoby Investments has earned the following returns on its four asset classes along with their standard deviations. If the risk free security returned 3.5% during the same year, which asset class had the best risk-return profile?

Asset Class	Return	SD
Large Stocks	9.55%	24.3%
Real Estate	10.52%	21.3%
Govt. Bonds	6.27%	8.4%
Private Equity	15.6%	31.4%

A) Large Stocks

B) Govt. Bonds

C) Private Equity

D) Real Estate