Joe Invested in a Piece of Land Seven Years Ago

Joe invested in a piece of land seven years ago when real estate prices were rising in his area, and he hoped that the land would double in value within five years. The land remained vacant and was only used in 20X0 when Joe was approached by a
Businessman to rent the land for two weeks for a local carnival for a fee of $1,000. It is now 20X2 and Joe has been offered a significant sum of money for his land in response to an advertisement he placed in a local newspaper. Based on Joe's primary intention for the land, the gain on the sale would be classified as:

A) exempt income.
B) business income.
C) property income.
D) a capital gain.