At the Time of His Death, Harvey Was a Shareholder

At the time of his death, Harvey was a shareholder in Grebe Corporation. In valuing the Grebe stock included in Harvey's gross estate, the IRS contends that the corporation possessed considerable goodwill. In disputing this contention, which of the following point(s) is/are relevant?

A) Average net profit figures include large gains from unrelated investments.
B) The rate of return used by the IRS for the type of business involved is too high.
C) Harvey was not an employee of Grebe but was merely a passive investor.
D) To provide financing, Grebe has been obtaining its working capital from banks at a market rate of interest.
E) None of the above.