10. In the current year, Tonald Drump Enterprises, Inc. (TD) (a C corporation) sells a building it had used in its business for $4,600,000 cash. In addition, the buyer agreed to assume a $500,000 liability that has encumbered the building for several years. TD purchased the building several years ago for $3,000,000 in cash and has properly taken $1,000,000 of tax depreciation deductions through the date of sale. The portion of the gain on the sale that will be classified as an ordinary gain is:

A. $5,100,000

B. $3,100,000

C. $2,600,000

D. $1,000,000

E. $800,000

F. $200,000

G. $0