*An investor mentions to her portfolio manager that her main goal is to maximize her portfolio's Sharpe ratio while also considering her risk tolerance and constraints. Which of the following asset allocation approaches is most appropriate for the investor?
A) Asset-only approach.
B) Goals-based approach.
C) Liability-based approach.
我觉得选B 答案选A
goal-based 和asset only 这种题怎么区分呢老师?