Dallas Corporation, Not a Dealer in Securities, Realizes Taxable Income

Dallas Corporation, not a dealer in securities, realizes taxable income of $60,000 from the operation of its business. Additionally, in the same year, Dallas realizes a long- term capital loss of $10,000 from the sale of marketable securities. If the corporation realizes no other capital gains or losses, what is the proper treatment for the $10,000 long- term capital loss on the tax return?
A) Carry the $10,000 long- term capital loss back three years as a short- term capital loss, then forward five years.
B) Use $6,000 of the loss to reduce taxable income and carry $4,000 of the long- term capital loss forward for five years.
C) Use $10,000 of the long- term capital loss to reduce taxable income.
D) Use $3,000 of the loss to reduce taxable income and carry $7,000 of the long- term capital loss forward for five years.