C. More than 5,000
5,600 people are infected with HIV everyday.
Addiction to a drug or substance
False, injuries are spontaneous and can happen to anyone flexible or not. However I do not know the statistics behind flexibility effecting injuries.
The answer would be pubic hair. Because, secondary sexual characteristics.
Visible secondary sex characteristics are nonreporductive sexual characteristics.
For males things that will start to show are pubic hair, facial hair, and Adam's apple.
A diet higher in lean protein and less processed carbs, would be a positive change to prevent diabetes with exercise.