challenge: What achievement did Châu Tuyết Vân and her teammates accomplish at the 2013 Southeast Asian Games?
  
  A. They set a new record in the creative poomsae event
  B. They won gold medals in the individual poomsae event
  C. They were the first female athletes to win gold medals for Vietnam in Taekwondo
  D. They won silver medals in the team poomsae event
  Answer: 