Final answer:
Jeff Kent, an ex-major league baseball player, was part of the Kalabaw tribe on the reality TV show Survivor during its 25th season set in the Philippines.
Step-by-step explanation:
Ex-major leaguer Jeff Kent participated in the reality TV show Survivor after his MLB career. He was a part of the Kalabaw tribe when he headed to the Philippines to compete in the show's 25th season, which is titled Survivor: Philippines. The correct answer to the given question is a) Survivor.