The correct option is D Hypodermis
∙ Outermost covering of the body is called skin.
∙ It has three different layers: Epidermis, dermis and hypodermis.
∙ Epidermis contains several glands and pigments, dermis layer contains blood vessels and nerve fibres in them.
∙ Whereas the hypodermis layer lying below the dermis regulates the normal body temperature.