Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to use a charcoal grill [title] Lay briquettes in a charcoal chimney. [step] About 3 pounds (1.4 kg) will be enough to fill most chimneys, and for most grills. Your chimney may also have a fill line.

Ending1: If so, use that as a guide. [substeps] A charcoal chimney is basically a metal cylinder with a grate at the bottom, holes in the side, and a handle on the side. Ending2: [title] Attach the wood to the second chimney. [step] You need to attach the charcoal to a new chimney, so take your screws and nail them to the bottom of the second chimney. Ending3: If so, line it up in advance to make it easier to view the shapes. Aim to line up a fireplace with the top edge of the chimney on top of the briquettes, or at least three inches away. Ending4: You'll want to prevent the briquettes from touching the barbecue grate below the grill. Set the briquettes out and on the grate in a blaze-proof or fireproof area.

Answer format: ending1/ending2/ending3/ending4