Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to launch a boat [title] Prepare the boat. [step] Prepare as much as possible while the boat is on the trailer, and on dry land. Prepare the engine, fuel, safety gear, mooring lines, fenders, etc.

Ending1: And install the other components of the boat as a separate group on your trailer. [title] Insert the key in the ignition, and turn it on. Ending2: You should be ready to drive the boat off the trailer right after it's backed down the ramp. Other people want to launch as well, and tempers will flare if you use dock time to do things you could have done in the parking lot. Ending3: You may also want to tape the boat to a boat dock or lift it from its trailer. [title] Put on the ski mask to protect your eyes. Ending4: In order to use the boat for the dolphin rescue mission. Remember to keep the engine set at a constant idle condition.

Answer format: ending1/ending2/ending3/ending4