Ron and Kathy Are Ticket-Sellers at Their Class Play $\$ 3.00$

Multiple Choice

Ron and Kathy are ticket-sellers at their class play. Ron is selling student tickets for $\$ 3.00$ each, and Kathy selling adult tickets for $\$ 5.50$ each. If their total income for 19 tickets was $\$ 72.00$ , how many tickets did Ron sell?

A) 6 tickets
B) 15 tickets
C) 11 tickets
D) 13 tickets