Is it best to be very flexible, moderately flexible, or not flexible (muscle stiffness) when participating in sport/exercises? Explain.

I would assume the answer to be very flexible, or at least moderately flexible, but I don't know for sure. It would be greatly appreciated if someone with more experience could help clear this up for me.

Explain why methicillin resistant staphlococcus aureus (mrsa) is more prevalent now than it was only 30 years ago. a. antibiotics cause mutations in staphlococcus aureus that lead to an increase in the number of methicillin-resistant strains. b. methicillin resistance causes an infection to spread more rapidly.c. frequent and inappropriate use of methicillin-type antibiotics has provided selective pressure that has resulted in an increase in the proportion of methicillin-resistant strains of staphlococcus aureus.d. diseases like aids have made people more vulnerable to infections from staphlococcus aureus.