Nana is a self employed consultant. For the past five years, she has used an extra bedroom (15% of the house) in her home as a qualifying home office and deducted 9,000 of depreciation expense. This year she sells the house for 740,000. The house cost 500,000. Nana is single. She will recognize gain on the sale of the house of:

A) 0

B) 249,000

C) 45,000

D) 9,000