Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to wire an electrical socket [title] Prepare the socket. [substeps] Turn off the power to the socket. Unscrew the face plate and make a note of the wire connections to the earth, neutral and live terminals.

Ending1: First, use a plastic socket wrench to unscrew the face plate from the socket. The socket wrench gives you more room on the metal part of the socket socket. Ending2: If you have trouble figuring out which wire to wire, ask a mechanic to help. [title] Tighten the front and rear shell on the socket. Ending3: Unscrew the face plate and make a note of the work holes. Remove the electrical plug firmly from its joint. Ending4: Unscrew the back box from the wall. Place the new double back box on the wall over the top of the existing hole.

Answer format: ending1/ending2/ending3/ending4