You will be given a definition of a task first, then some input of the task.
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 protect your village in clash of clans [title] Build walls effectively. [step] The first aspect to a great defense base in clash of clans using all of your walls, and using the walls effectively. At lower levels you won't have a lot of wall to build so you want to put your most valuable resources inside your walls. <sep> (A) [substeps] When building walls, avoid building wall walls because they can be heavy and will only create more loot for you. To defend yourself, build walls by using screens, floors, and mobs. (B) Troops with enough time will also help and prevent the enemy from using walls like apple, cabbage, and rice place to dig and dig for food and water. [title] Seek out completely different crafting structures. (C) [substeps] At the beginning of your village your three biggest resources are your elixir and gold storages, and your town hall. For defense minded players, the town hall is your most valued asset. (D) [substeps] Two strongest or strongest will be defense and defense. Each wall should have one higher or lower building.
Output:
C