Given the task definition and input, reply with output. 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 care for a toad [title] Get a properly sized container. [step] You will need to purchase a ten gallon tank for one or two toads. You should generally not put more than three toads together in a tank, as many toads can become aggressive. <sep> (A) A 12 gallon tank works well for four toads. [substeps] Your toad should be at least 7 feet (1.8 m) long and 7 feet wide. (B) Do not house different kinds of toads together. [title] Buy substrate that your toad will enjoy. (C) It's important to have a fully grown toad. [substeps] A toad should be able to crawl, jump, and climb up the sides of a six foot box. (D) Remember that toads are naturally peaceful creatures. They like having places to hide and eat.
B