Please choose the correct ending to complete the given sentence: Starting a campfire: A man shows how to start fire with a device and a small piece of wood. then

Ending1: , the man start from the front of the shop to the check the fire scale then goes to the back to start again. Ending2: , the man put liquids inside the fire and start to cook it taking turns. Ending3: , the man pulls a small piece of wood that he puts on the fire and continue to change the flame with the digital timer. Ending4: , the man puts wood on the device and blows the flames.

Answer format: ending1/ending2/ending3/ending4