The answer is d) Sucrose.
Explanation for each option:
a) Wax: Wax is a type of lipid, not a carbohydrate. Lipids are a group of naturally occurring molecules that include fats, waxes, sterols, and fat-soluble vitamins, among others.
b) DNA: DNA (deoxyribonucleic acid) is a nucleic acid, not a carbohydrate. It is the molecule that carries genetic instructions in all living organisms and many viruses.
c) Insulin: Insulin is a protein hormone, not a carbohydrate. It is produced by the pancreas and plays a crucial role in regulating blood glucose levels.
d) Sucrose: Sucrose is a carbohydrate. It is a disaccharide composed of glucose and fructose and is commonly known as table sugar.
Summary: Sucrose is the only option that is a carbohydrate, as it is a sugar composed of glucose and fructose.