Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to bbq with propane [title] Get a propane tank for a gas grill. [step] Propane tanks are measured by weight; if you plan on doing a lot of grilling, get a heavier tank with more gas inside. If you're only going to be using the tank a few times, opt for a smaller propane tank.

Ending1: Since propane tanks come in various sizes, they tend to produce higher levels of gas than conventional propane. [title] Obtain a gas grill designed for hamburgers. Ending2: [substeps] The larger the tank, the better. If you're planning on doing a lot of bbq by yourself, it can cause problems for your cookware. Ending3: You can find propane tanks at your local supermarket or hardware store. [title] Place the propane tank next to the grill. Ending4: If you're going to be using the tank more times, then buy one with a zippered cover. [title] Find propane leads for the burner.

Answer format: ending1/ending2/ending3/ending4