I believe the three choices that are correct would be A) B) and D)
NOT b because that is healthy, talking to other people is okay and so is hanging out with your own friends
So... Its probably A
Rock climbing and hiking are the most vigorous
Answer:
if you repeat the same exercise, the body works more efficiently and burns more calories to experience different types of exercise.
Explanation:
<em>o</em><em>p</em><em>t</em><em>i</em><em>o</em><em>n</em><em> </em><em>3</em>