Answer:
the supplier of energy
Explanation:
Glucose is the most important substrate of cell metabolism. It is the carbohydrate fulfilling the task of being the energy transport system of the body. Several parts of the body like the nervous system or blood cells are completely dependent on glucose as the supplier of energy.
I would say B, as both A and D are obviously incorrect and stress can be a natural part of life as long as it does not dominate you.
I guess it is called as Vulva
