Dawn (Single)purchased Her Home on July 1,2008

Dawn (single) purchased her home on July 1,2008.On July 1,2018,Dawn moved out of the home.She rented out the home until July 1,2019,when she sold the home and realized a $230,000 gain (assume none of the gain was attributable to depreciation) .What amount of the gain is Dawn allowed to exclude from her 2019 gross income?

A) $0.
B) $23,000.
C) $207,000.
D) $230,000.