Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to connect electrical wire [title] Carefully remove insulation. [step] Remove only enough as required by the connector, terminal, etc. For connection.

Ending1: After removing insulation, set insulation aside to use later. [title] No object element is apt to touch object electrically while wire is being connected. Ending2: A " strip gauge " is often provided near the terminal of devices (switches, outlets, etc. ) and should be checked before striping insulation. Ending3: [title] Insert 1 to 1 tension wire into 10-inch (25-cm) holes in the battery. [title] Lift radio on clip and power off to remove the head. Ending4: [title] Cut the insulation (with a utility knife) using a circular saw. [title] Place the insulation on a flat surface with the clamps on the back of the wires.

Answer format: ending1/ending2/ending3/ending4