Mary Received the Following Items During 2013: Christmas Bonus from Her

Mary received the following items during 2013: Christmas bonus from her employer $\$ 500$
Christmas gift from her father $\quad \quad \quad \$35$
Prize won in a radio show contest $\quad \$ 100$ What is the total amount of the above items that must be included in Mary's 2013 gross income?

A) $0
B) $100
C) $500
D) $600
E) $635