Answer: A. Asset A
Step-by-step explanation:
The Sharpe ratio is used to adjust the return earned on an asset based on its risk. This allows investors to know the returns they are getting for risk being taken.
A higher Sharpe ratio is preferred to a lower one as it shows that more returns are being received per risk taken. A rational risk averse investor would therefore pick Asset A because they would be getting more return for the risk they take regardless of how little this risk is.