Teacher: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".
Teacher: Now, understand the problem? Solve this instance: [header] How to make a pond [title] Decide what kind of pond you want. [step] What function will it serve? Think about the features you'd enjoy most as you begin constructing plans. The most common backyard ponds fall into one of the following categories. <sep> (A) [substeps] Think about specific factors that interest you. For example, you might want your pond to serve a wide variety of people and animals. (B) [substeps] A wildlife pond is perhaps the easiest type of pond to construct. It doesn't require a pump, so it needn't be close to a source of electricity. (C) [substeps] Backyard ponds are public ponds for swimming. Private ponds are specially designed to allow soft ponds to alternate under the water allowing shallow water to escape, if desired. (D) [substeps] A pond's function is governed by the needs of the child. If you intend to water plants for example, you'll need a pond to be well-stocked and well ventilated.
Student:
B