Answer:
When we're babies.
Explanation:
When you're born, all of your bones are almost completely formed out of cartilage, and you have approximately 300 of them. Over time, your bones begin to fuse together and solidify into pure bone. When your born about half of your bones are solid cartilage and the other half is a mixture, that usually applies to your bigger bones like the bones you have in your legs as they have to be at least partly solidified enough for you to function
Supplies about 10 seconds worth of energy and is used for short bursts of exercise, such as a 100-meter sprint. This pathway doesn't require any oxygen to create ATP.
Albert Bandura emphasized the interaction among behavior, conscious cognitive processes, and social experiences in his personality theory called social-cognitive theory.
I think the answer is c , i hope it’s right