Hint:Regulation of the glucose levels is done by the hormones called as endocrine hormones in the pancreas by negative feedback loop. Examples are insulin, glucagon, amylin and somatostatin. Among these hormones, insulin lowers the blood glucose level and amylin hormone increases the amount of glucose in blood.
Complete answer: Glucose is an important metabolite of the human body which is used as fuel in the body and this is a monomer of the carbohydrates and basic sugar of the food components. Amount of sugar in the blood regulation is controlled by the body regularly. And a healthy person should have blood glucose levels in between 60 and 140 mg/dL.
High or elevated amounts of the glucose may lead to disorders and toxicity: Acute disorders: This condition happens when the amount of the glucose in the blood is elevated (> 300 mg/dL) causes polyuria and can cause dehydration in the patient. If the condition becomes worse (>500 mg/dL) is known as profound hyperglycaemia and may cause confusion. Coma or may lead to death. Chronically: Hyperglycemia that ranges from 120 to 130 mg/dL damages the tissues of the body and lowers the immune response.
Thus, the correct answer is hyperglycemia that is option ‘A’.
Note:Brain cells do not require insulin for the transferring of glucose from blood to the cells or neurons. But still there should be a normal amount present. Low amounts of glucose in the blood cause starving in the cells and high amounts of the glucose in the blood leads to sticky and paralyzed cells.