Lemon Corporation purchased a building in 1980 for $900,000. During 2018, the building was sold for $700,000 when the accumulated depreciation was $600,00Q (SL would have been $440,000). What is the amount and character of gain recognized on the sale?

Ordinary Income Sec. 1231

a. $248,000 $152,000

b. $160,000 $240,000

c. $400,000 $ 0

d. $208,000 $192,000

e. None of the above.

(The answer is D so please provide the work and an explanation)