Five years ago, George received an inheritance of his grandfather's employer stock worth $$250,000.$ You have analyzed George's portfolio and advised him that most of the inherited stock should be sold because it represents over half of his total net worth. George says that he cannot agree to your recommendation because it is his "grandfather's stock" and is separate from his other investments. This is an example of

A$)$

recency bias.

B$)$

mental accounting.

C$)$

hindsight bias.

D$)$

loss aversion.