MUL TIPLE CHOICE $-(2$ points each$)$ Choose the letter indicating the best answer for each uestion. Please mark all answers on the Scantron sheet.

A Company's only product sells for $$150$ per unit. Its variable costs per unit are $$100,$ and its d costs total $$75,000.$ What is its contribution margin per unit?

A$)$ $$50$

B$)$ $$250$

C$)$ $$100$

D$)$ $$150$

E$)$ $$25$