Which of the following conditions must be satisfied for a taxpayer to expense, in the year of purchase, under Internal Revenue Code Section 179, the cost of new or used tangible depreciable personal property?

I. The property must be purchased for use in the taxpayer's active trade or business.

II. The property must be purchased from an unrelated party.

(a) I only.

(b) Both I and II.

(c) Neither I nor II.

(d) II only.