Which of the Following Are True

Which of the following are true?

A) American swimmer Michael Phelps almost tied another American swimmer, Mark Spitz (1976. Munich Olympics) as the most decorated Swimmer in Olympic History. Phelps was one medal shy of tying Spitz.
B) American swimmer Dara Torres made Olympic History as the first swimmer to compete in 5 different Olympics. She won three silver medals in Beijing.
C) The entire Chinese women's gymnastics team was disqualified when it was discovered that they were under age; gymnasts must be 16 years old during the Olympics. The oldest Chinese gymnast was 15, the youngest 14.
D) President Robert Mugabe of Zimbabwe traveled to Beijing to personally present the gold medal to Kristy Coventry who won the 200 meter backstroke. He received a hero's welcome in Beijing by the Chinese government.