In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Q: [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. <sep> (A) 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. (B) [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. (C) You can find propane tanks at your local supermarket or hardware store. [title] Place the propane tank next to the grill. (D) 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.
A:
C