Question

Swimming alone

A. is acceptable in a pool but never in a lake or an ocean.
  B. increases the benefits of swimming for cardiorespiratory endurance.
  C. is OK as long as you've been swimming for at least five years.
  D. is never safe, regardless of ability.

Answer 1

D. Is never safe regardless of ability

Step-by-step explanation:

Accidents happen to everyone so if anything takes place while swimming yu always have atleast one other person with you to help.

Answer 2

D. is never safe, regardless of ability.