Answer:
In the third season of Glee, Santana is not cast in the production of West Side Story. She is initially left out of the main roles, but she ultimately gets a chance to audition for the role of Anita after Rachel Berry's injury. She is ultimately not cast in the role, but she does get to perform in the ensemble. so, the correct answer is 3) Santana.
Step-by-step explanation:
Mike: Mike Chang is cast in the production of West Side Story. This character, portrayed by Harry Shum Jr., showcases his dancing talents in the musical.
Puck: Puck, played by Mark Salling, is also cast in West Side Story. His involvement adds a dynamic element to the production.
Santana: Santana, portrayed by Naya Rivera, is the character not cast in West Side Story. Her journey in the series takes a different trajectory during this particular production.
By eliminating the characters one by one, it becomes evident that Santana is the one who is not part of the West Side Story cast in the third season of Glee.
Therefore, the correct answer is 3) Santana.