Option C: C
To determine which candidate got the ticket, we need to analyze the acceptability of each candidate by the parties based on the given conditions and the formula that a candidate must be accepted by most of the parties.
     Let's break down the acceptability of each candidate:
     ● Candidate A:  
           ○ Acceptable to W.
           ○ Not acceptable to Z.
           ○ Acceptable to X (when candidate A was preferred by X but not by Y).
           ○ Not acceptable to Y.
       Total acceptability: W, X (2 parties).
     ● Candidate B:  
           ○ Acceptable to Y.
           ○ Not acceptable to X.
           ○ Preferred by W and Z (when candidate B was preferred by W and Z).
       Total acceptability: Y, W, Z (3 parties).
     ● Candidate C:  
           ○ Acceptable to W and Y.
           ○ Preferred by X and Z (when candidate C was preferred by X and Z).
       Total acceptability: W, Y, X, Z (4 parties).
     ● Candidate D:  
           ○ Acceptable to W and X.
       Total acceptability: W, X (2 parties).
     Based on the analysis, Candidate C is acceptable to all four parties (W, X, Y, and Z), which is the highest number of acceptances among the candidates. Therefore, Candidate C got the ticket.