Answer: A) selling a portion of ABC and using the proceeds to purchase mutual funds will reduce his nonsystematic risk.
Step-by-step explanation:
We should note that in this case, the prospect has a large investment in the company and therefore is exposed to non systematic risk.
To reduce the risk due to the prospect's large investment, it is advisable for the prospect to sell part of the portion of ABC stock and then the proceed gotten from the sale can be used to buy mutual funds. This is diversification and helps reduce risk.