Which One of the Following Would Not Be Counted as Part

Which one of the following would not be counted as part of this year's GDP?

A) the lumber you purchase so you can build bookshelves for your room
B) the purchase of wheat that was produced in the current year by a Saskatchewan farmer
C) the purchase of a new personal computer that was produced in Canada in the current year
D) the government bond you buy for your newborn niece
E) the purchase of a house that was built in the current year