Antony wants to purchase tickets from a vendor to watch a foot ball match. The vendor charge a one time service fee for processing the purchase of the tickets. The equation $T=12n+15,$ represents the total amount $T$ in dollars, he will pay for $n$ tickets. What does 15 represents ?

Question

$\begin{array}{1 1} (a)\; \text{The price of one ticket in dollars} \\ (b)\; \text{The amount of service fee in dollars.} \\ (c)\; \text{The total amount in dollars, Antony will pay for one ticket.} \\ (d)\; \text{The total amount in dollars, Antony will pay for any number of tickets.} \end{array}$