Given the task definition and input, reply with output. 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 conk hair [title] Use a lye-relaxer if you have coiled or curly hair. [step] Traditionally, conking hair was done by making a homemade relaxer with lye. Lye-relaxers are strong enough to straighten hair that is curly or coiled. <sep> (A) To make one, use the tip of a spoon. Place the bristle head of the spoon into the palm of your hand. (B) They may also help straighten out the split ends. [substeps] Be aware that the extra thickness help hair relax and become smooth. (C) But hair preserved in the lye bath can be treated with at least a couple of days' worth of hair spray or leave-in shampoo. Lye's high oxalate content is important for hair's longevity. (D) [substeps] Lye is a strong chemical that can burn your skin and hair if too much is applied or it sits on your hair too long. Always use lye-relaxer with caution, preferably with help from a friend.
D