The body of Edison cell is made of

bakelite
rubber
nickel plated steel
aluminium

The correct answer is: C. nickel plated steel.

Bakelite is a hard, brittle, heat-resistant, and electrical insulating material. It is made from a phenol-formaldehyde resin. It was invented in 1907 by Leo Baekeland. Bakelite is used in a variety of applications, including electrical insulation, cookware, and furniture.

Rubber is an elastic material made from the sap of certain trees. It is used in a variety of applications, including tires, hoses, and gaskets.

Nickel plated steel is a type of steel that has been coated with a layer of nickel. This coating protects the steel from corrosion and wear. Nickel plated steel is used in a variety of applications, including appliances, tools, and machinery.

Aluminium is a lightweight, strong, and corrosion-resistant metal. It is used in a variety of applications, including building materials, cookware, and aircraft.

The body of an Edison cell is made of nickel plated steel because it is a strong, durable material that can withstand the corrosive environment inside the cell. The nickel plating also protects the steel from corrosion.