Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to make a fire with flint and steel or quartzite and steel [title] Prepare a pile of tinder in your fire pit prepared, according to normal fire making procedure. [title] Prepare a " birds nest " of fibrous material with a piece of char cloth in the middle. [title] Get a hatchet or knife (making sure it is carbon steel, not stainless steel) and find a flint rock or quartzite rock.

Ending1: [title] Hollow out one stem of the flint rock or quartzite. [title] Cut a small hole all the way around each stem. Ending2: [title] Purchase a matchwood knife, and a flint and steel. [title] Cut pieces about ¾ of an inch long, each 16 inches (46 cm) to form a small fire plug. Ending3: [title] When it starts to melt you could then strike up a fire on the rock but be cautious. [title] Wait for the fire to be evident and proceed to the next step. Ending4: [title] Make sure the rock has a point on it. [step] Put the rock in your right hand and the hatchet in your left hand, or vice versa.

Answer format: ending1/ending2/ending3/ending4