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Abstract would be the answer
It's between A. Medical Blog and B. A nurse's recommendation
Goals don't give anything to your future it shapes it. Let's say if you like soccer and you like to play music, you can set a goal to become a good soccer player and then you wanna learn music.
Proper functioning of cells is NOT a potential cause of uncontrollable cell divison. Cells originally aren't supposed to divide uncontrollably but rather under strict and controlled conditions. When your cells aren't dividing uncontrollably we can safely say that there is "less wrong" with them than when they do so. So in essence, saying that a proper functioning is not a potential cause of uncontrollable division would be correct in this case.