B seems like the best answer
A reliable source many have used and says .org
also one that has a short link
C. <span>Do additional aerobic exercises immediately after the treadmill
This allows for Tammy to cool down after an intense workout.</span>
A newborn baby has approximately 305 bones because a baby skeleton is mostly cartilage. As a person grows up, most of this cartilage turns into bone in a process called ossification. By the time they grow up, they have only 206.
Hope this helps!