Answer:
A, the adjustable plate-loaded barbell sparked the most popularity in the 1900s by making it available to all skill levels.
I hope this helped at all.
Yes bone marrow transplants do contain stem cells so that new skin is able to form if something were to happen to it.
The best thing to do with the increasing pollution in your area is to do steps stated in letter A. It is essential that the council be informed of the problem and there is a need to follow up on the progress as well. The cooperation of everyone involved in this problem is deemed very necessary.