Vitamins work with enzymes to initiate chemical reactions within cells. Vitamins plays an indirect role in catalysis, where in the beginning of the chemical reaction speeds up with the help of enzymes, in order to participate in catalytic reactions.
Could you explain what you are trying to find out
Could be all of these but if I had to choose one, I would go with. Behavioral signs. Hope this helps.
The answer to your question is B
