问题如下：
Hill refers his friend, Richard Morrison, the former CEO of Masury Bridge and Iron (MBI), to Keller to discuss his wealth goals.
Keller realizes that the Morrisons’ decision making is influenced by psychological considerations and decides to use a goal-based planning approach. Keller constructs the table below to simplify the discussion at their next scheduled meeting.
Table：Morrison Family Wealth Distribution
Keller tells the Morrisons:
"Diversification is a bedrock investment principle, and there are several tools that can be used to mitigate the risk of a concentrated single stock position."
Identify and describe three tools Keller is referring to in the above statement.
选项： 解释：
The three tools for addressing a concentrated position in a publicly traded common stock include outright sale, monetization, and hedging. With an outright sale, owners can sell the concentrated position, which gives them funds to meet a spending need or reinvest. An outright sale typically results in significant tax liabilities. Monetization strategies provide the owners with funds to spend or reinvest without triggering a taxable event. A loan against the value of a concentrated position is an example of a monetization strategy. The owner of a concentrated position can hedge the value of the concentrated position with derivatives. A long put position is an example of a hedge.
第三种方法为什么不是yield enhancement？而是outright sale呢？
