Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to remove health hazards from your backyard [title] Make sure your grill is not a fire hazard. [step] Everyone loves to grill in the backyard. However, grills are hazards because they are controlled fires.

Ending1: There are several things you can do to prevent a fire : [substeps] Always drain the burners before using them. These will make the flame crackling and hot, which can result in burns or fires. Ending2: Make sure you keep the grill and open flames at least 10 feet (8 meters) below the ground in any area that has a fire hazard. Also do not let children or pets get near the grill. Ending3: This means you should place your grill in a location that is a safe distance from combustible or flammable items. Place it 10 feet from anything that can catch fire. Ending4: [substeps] Check your grill frequently to make sure it's in good condition and is not attracting pets. Older grill engines sometimes get hot coals in the core, too.

Answer format: ending1/ending2/ending3/ending4