Which is the largest gland in human body?

Liver

The correct answer is Option (1) -Liver

The human body's largest gland is the liver. It is also the largest internal organ, weighing up to 1.5–1.6 kg for an adult human.

The liver is enormous in size, functionally complicated, and involved in a wide variety of regulatory systems.

Glycogen storage, decomposition of red blood cells , plasma protein synthesis, hormone generation, and detoxification are all significantly regulated by it.