You run a business out of your dorm room selling ACC2020 textbooks in both paper and digital versions. The paper version costs you $250 and you can sell it for $300. The digital version costs you:
A. $200 and you can sell it for $250.
B. $150 and you can sell it for $200.
C. $100 and you can sell it for $150.
D. $50 and you can sell it for $100.