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 create an indoor box turtle habitat [title] Set up a large enough enclosure. [step] Box turtles need a lot of room to roam like in the wild. Each turtle in your terrarium needs at least three square feet (91 cm) of floor space for every eight inches (20 cm) of their length. <sep> (A) This provides them enough room to roam, dig, and explore. [substeps] For example, a 12 inch (30 cm) turtle needs at least a 4.5 sq ft (137 cm) of space. (B) As your turtle grows, it will need ten square feet (22 cm) of space for every eight inches (20 cm) of length. Therefore, the space must be large enough to house the adult turtles, eight square feet (240 cm) for every eight feet (22 cm) of their length. (C) A house turtle would need at least twice this amount of space; three square feet is often better for longer turtles. [substeps] Place boxes in different corners of your home. (D) While most turtle species can live longer in a single enclosure, there is conflicting opinion regarding the durability of cardboard boxes. Box turtles grow to be tall, and many reptiles grow tall.
A:
A