They have weakened immune systems so they would catch more than a cold and it could possibly kill them.
True. Lactic acid is caused by strenuous exercise. The lactic acid is formed because while working out, you don't receive as much oxygen.
Question 1- Personal kit, specialized equipment, and fitness and exercise equipment
Question 2- All of the above
Question 3- Keep your gear clean and visually inspect it on a regular basis.
Question 4- Both A and B
Question 5- True
Static stretching refers to stretching which encourages you to slowly stretch your body to the farthest point without pain (but it can also hurt a bit, it just has to stay under the limit of discomfort) and you have to keep it in that position for some time. For that reason, I'd say that the correct answer is D.