text: A tennis coach was trying to put together a team of 4 players for a tennis championship out of 7 players. R, S, T are the male players, and W, X, Y, Z are the female players. Note that all players have equal ability, and the team needs to have atleast 2 male players. While selecting the team we need to keep in mind that all 4 players should be able to play with each other.We also need to keep the following restrictions in mind:
  - R cannot play with Y
  - S cannot play with W
  - T cannot play with Z
  Which of the following are true:
  
  A: S and Z cannot be in the team together.
  B: T and Y cannot be in the team together.
  C: T and X cannot be in the team together.