Answer the Following Questions Using the Information Below

Answer the following questions using the information below:
Ruben intends to sell his customers a special round-trip airline ticket package. He is able to purchase the package from the airline carrier for $150 each. The round-trip tickets will be sold for $200 each and the airline intends to reimburse Ruben for any unsold ticket packages. Fixed costs include $5,000 in advertising costs.
-What is the contribution margin per ticket package?

A) $50
B) $100
C) $150
D) $200