Olena runs an underground business of cultivating and selling cannabis crops on the black market. Olena dreamed of expanding her business and used income from her sales of cannabis to purchase a warehouse in December 2011. She planned to use the warehouse as a permanent headquarters and had no intention to sell up. However, Olena's exploits had made the police suspicious. To prevent police detection, she decided to sell the warehouse. The warehouse unexpectedly sold for a profit of $300,000 in February 2022.

Which one of the following statements is correct regarding this scenario?