Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to fix a jammed garbage disposal [title] Unplug the garbage disposal unit. [step] Pull the plug out of the outlet to ensure that the disposal unit can't activate while you work on it. It's better to be safe than sorry.

Ending1: [substeps] You should also unplug all incoming and outgoing garbage from the disposal unit. [title] Disconnect the garbage disposal unit if the unit doesn't operate. Ending2: [title] Press the reset button on the disposal's underside. [step] The reset button or thermal overload button is on the bottom of the garbage disposal. Ending3: [title] Inspect your garbage disposal unit to make sure it is plugged in and working efficiently. [step] Check for any stuck-on rust-like residue from the head of the coffee grinder. Ending4: [substeps] To disconnect the garbage disposal unit from its electrical outlet, turn off the electricity to the unit while you're working. [title] Remove the piping on your garbage disposal.

Answer format: ending1/ending2/ending3/ending4