The correct option is D All of these
Glucose is a hexose monosaccharide. It is the instant source of energy and does not need digestion. It can be taken orally (in powdered form) or injected intravenously (in case of patients who are administered drips). It is also known as dextrose (because it can rotate the plane polarized light to the right- dextrorotatory), grape sugar (found in grapes), blood sugar (found in blood), corn sugar (found in corn).