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". 

Example Input: [header] How to get rid of the whitefly [title] Vacuum the flies. [step] Use a small hand vacuum, or hold the furniture-cleaning nozzle of a standard vacuum cleaner. Walk around your infested plants and suck the pests from the undersides of the leaves and foliage. <sep> (A) This method is quick and straightforward, and it can remove whiteflies from all stages of the development cycle-from larvae to mature, plant-munching adults. Vacuuming is most effective as soon as you notice an infestation. (B) [substeps] Lice/hornets that have infested the insect where possible will probably cause an infestation when they have access to this species. Lice and hornets can be pregnant bees or even cobwetters. (C) [substeps] Once you've vacuumed up all of the insects, you can dismantle the insect and wash it off. Plant diseases like freeze burn-gas are very likely to have mites, fungus, or other biological problems with this insect. (D) [substeps] If possible, clean the potted plants as a habit to keep the insects away. [title] Tear off the hard outer leaves once the insects have died.
Example Output: A

Example Input: [header] How to wear a sport coat [title] Learn the difference between a sport coat and other coats. [step] Though they're commonly conflated, a sport coat is not a blazer or a suit jacket. Sport coats need not match the fabric of the pants, as you'd find with a suit jacket. <sep> (A) The sport coat should also wear dark wash jeans and a tie. [substeps] Sports coats especially stick out in the summer and stay in place at night during the day. (B) Instead, they have a specific pattern or color used in place. Once you find a sport coat, stay in mind that it needs to be closely tailored. (C) In fact, many sport coats are used to cover up " casual " or something too formal, like a suit or slacks. Sport coats typically go below the knee or above. (D) The biggest difference between a sport coat and a blazer is that sport coats are patterned, while blazers are made of solid fabric with a contrasting color of button. [substeps] Stylistically, sport coats are sometimes a slightly looser fit than other kinds of dress coats, allowing for outdoorsy use and " sporting.
Example Output: D

Example Input: [header] How to prepare a macrobiotic diet [title] Base 40-60% of your diet around organic whole grains. [step] According to the macrobiotic diet, grains are healthier for your body and help maintain your energy balance. Great options include oats, barley, millet, brown rice, quinoa, and corn. <sep> (A) Your meals should be built around your grains. [substeps] Avoid processed grains, such as bread and pasta. (B) [substeps] The macrobiotic diet is comprised of only three major types of grains: oats, white rice, quinoa, and whole wheat flour. Both flour and white rice provide calcium and vitamin d, in addition to many other vitamins and minerals. (C) Only buy grains in low-sugar brands and stock them with these foods. [substeps] Fresh, whole-grain varieties are fine for starchy foods like bread, rice, and pasta. (D) [substeps] You can also make your own whole wheat pasta by substituting bread for flour, rice, and oats. Dry aging recipes such as white pasta or whole wheat pasta also use enriched ingredients, like oats, so make sure you sample your whole wheat pasta regularly.
Example Output:
A