Im not enitrely sure but i think the answer is C from what i am reading.
Answer:
<h2>Running a marathon </h2>
Explanation:
<h2>It causes you to breathe harder, and gets your heart beating faster than at rest.</h2>
<h2>HOPE IT HELPS U!!!! </h2>
The answer B makes the most sense.
Squats and lunges
Hope this helps
