I think it is light so B) light
Answer c
Because the lowest one is at the bottom near 5 and the top one is on 25m and for it to be at 11m will be the wrong answer.
Glucose is the main provider of energy for the brain and the nervous system. Because the brain is so rich in nerve cells, or neurons, it is the most energy demanding organ, using one half of all the sugar energy in the body. Brain functions such as memory, thinking and learning are closely linked to glucose levels and how efficiently the brain uses this fuel source.