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". 

[header] How to make overnight oats [title] Choose a container. [step] You can use almost anything that has a lid. Canning jars are commonly used because they work great for storing and serving. <sep> (A) The desired container size will depend on the container you're using. [substeps] At minimum, you'll need a glass or metal container with some silicone on one side and some plastic or copper on the other. (B) Most commercially, goslings are meant for roasting meat and their canning uses heat. Keep in mind that your hand will be able to hold the heat long enough to cook the ingredients into, rather than break them by hand. (C) Jars should be 8-10 gallons (280-356 l) in size and range from 4-6 inches (10-15 cm) to 6-7 inches (10-15 cm) in diameter. [title] Wash the jar thoroughly with warm water. (D) [title] Add as many serving of rolled oats as you prefer. [step] A serving is usually 1/2 cup of oats, but you may desire a more generous portion or a family size batch.
D