D. Cancer is the answer to your question as those types of therapy cannot treat the previous diseases/disorders
I'm pretty sure that would be false and would also go against some of the points of what your talking about. Not to mention it's rude to do so. I'm pretty sure anyways.
Hope that helps.
Well, I'm not sure about how many cells we have, but the average human body makes about 259 billion red blood cells per day. (That's why I don't know). Also, there are about 200 different types of cells with about 20 different types of organelles.
Hope this helps!
Answer:
Both answers are iron in my opinion.