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 set up a fish tank for plecostomus catfish [title] Buy the right size tank. [step] Pleco catfish can be large, so it's important to have a tank big enough for their size and how many plecos you want to have. Plecos can be up to 15-24 inches long when they're fully grown. <sep> (A) Terrariums can be purchased at aquarium stores, from vendors, and online. [substeps] Terrariums are made of highly porous material and provide the best setup for plecos. (B) [substeps] Your tank should ratio should be 1 gallon of water for one inch of fish. Pleco catfish live for 20-30 years, so it will take them awhile to reach their full grown size. (C) They require lots of space in the tank and they can be pretty aggressive. A small 10 gallon (25 l) tank with at least 12 rows of plecos can also work. (D) Choose shallow water to accommodate your plecos, as they have a lot of space to move around. [substeps] Make sure the tank isn't deep enough for your plecos' heads to go under.
A:
B