The answer is option B.
The skin is a physical
barrier, and as it, it plays an important role in order to prevent the
entrance of microbia to the body. For this reason, there is a very
little percentage of microorganisms that achieve to enter in our body, generally by food, mosquito bites, or injections.
Tread mill because a tread mill u use a lot of body muscle
Most girls are in poverty and make money by doing what they can and doing it without choice for their children and such and it can spread in thoses ways
Motor i believe that's correct
