Final answer:
Bluebird Corporation may use the capital loss to offset the capital gain and must carry the net capital loss of $15,000 forward five years as a short-term capital loss.
Step-by-step explanation:
The correct statement is option b. Bluebird Corporation may use the capital loss of $45,000 to offset the capital gain of $30,000. This results in a net capital loss of $15,000. According to the tax rules, Bluebird Corporation can carry this net capital loss forward for up to five years as a short-term capital loss.