Energy is stored in liver and muscles in the form of

Correct answer: (d) Glycogen

Explanation

In animals, excess glucose is stored as glycogen, a branched polysaccharide of glucose, chiefly in the liver and muscles.

Liver glycogen maintains blood sugar for the whole body, while muscle glycogen supplies energy locally during activity.

This is animal storage; the equivalent storage carbohydrate in plants is starch, not glycogen.