Use a Preference Table for the Following Preference Ballots to Answer

Use a preference table for the following preference ballots to answer the questions.
$\begin{array} { c c c c c c c c c c c c c c } \mathrm { X } & \mathrm { X } & \mathrm { Z } & \mathrm { X } & \mathrm { X } & \mathrm { Z } & \mathrm { Z } & \mathrm { X } & \mathrm { Z } & \mathrm { X } & \mathrm { Z } & \mathrm { X } & \mathrm { Z } & \mathrm { X } \\ \mathrm { Y } & \mathrm { Y } & \mathrm { X } & \mathrm { Y } & \mathrm { Y } & \mathrm { Y } & \mathrm { X } & \mathrm { Y } & \mathrm { Y } & \mathrm { Y } & \mathrm { Y } & \mathrm { Y } & \mathrm { X } & \mathrm { Y } \\ \mathrm { Z } & \mathrm { Z } & \mathrm { Y } & \mathrm { Z } & \mathrm { Z } & \mathrm { X } & \mathrm { Y } & \mathrm { Z } & \mathrm { X } & \mathrm { Z } & \mathrm { X } & \mathrm { Z } & \mathrm { Y } & \mathrm { Z } \\ & & & & & & & & & & & & & \\ \mathrm { X } & \mathrm { X } & & & & & & & & & & & & \\ \mathrm { Y } & \mathrm { Y } & & & & & & & & & & & & \\ \mathrm { Z } & \mathrm { Z } & & & & & & & & & & & & \\ & & & & & & & & & \end{array}$ (a) How many people voted? (b) How many people voted for the candidates in the order of preference ZYX? (c) How many people voted for candidate X for their first choice?