Detailed Instructions: 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".
Problem:[header] How to protect chickens from feral animals [title] Build your coop off the ground. [step] When building a coop, elevation can help protect your chicken from potential predators. This can prevent rodents from nesting near your chicken coop, as they will be more exposed. <sep> (A) Ideally, have your coop elevated about a foot off the ground. [substeps] Unless you're very familiar with building yourself, it's best to have professionals build your chicken coop. (B) To build a coop off the ground, you need a flat surface to build your chicken coop on. You need to build it on at least two sides. (C) Additionally, building your coop on top of high soil can make it much easier to uncover the nesting site from the ground. [title] Get a distance from any structures near the coop. (D) [substeps] Build your chicken coop on top of an old fence post or a wire door. Also, make sure that animals do not dig under the fence post or door to get inside your chicken coop.
Solution:
A