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 make homemade hormone rooting powder or tonic [title] Use cinnamon. [step] Cinnamon prevents the growth of fungus. While it acts less as a rooting hormone, the fact that it curbs the fungal growth means that the plants have a great chance to grow without needing any additional help. <sep> (A) [substeps] Consider adding cinnamon powder to your herbal tonic each day by mixing small cinnamon cubes with water and using them for a week. [title] Try using flakes of dried marigolds. (B) [title] Try a silicon tablet or cacao tablet. [step] They can last up to a week, but commercially available forms are fast-acting. (C) [title] Dip or roll the cutting in ground cinnamon. [substeps] If dipping, tip some cinnamon into a cup and simply dip the cut stem end into the cinnamon. (D) Make sure that you use cinnamon in conjunction with regular root growth products, as cinnamon provides an excellent additive that can help regulate the risk of fungal infections. [substeps] Make sure that you use cinnamon on plants that are not affected by herbaceous or fungal infections.
Example Output: C

Example Input: [header] How to read an ear reflexology chart [title] Get an ear reflexology chart online or refer to one in a book. [step] Before you can learn how to read an ear reflexology chart, you will need to get yourself a good one to consult. You can find ear reflexology charts online or in a reflexology book. <sep> (A) For best results, get a large poster size chart. The ear has 90 standardized reflexology points, so it can be difficult to read an ear reflexology chart if it is too small. (B) Read the chart aloud to yourself in the living room or in the shower, if you don't have a room to study in. [title] Read the chart in a library or in an online book. (C) [substeps] You will also need to see if any glaciers are present. These may be signs of a temperature problem. (D) [substeps] Place your index (pointer) finger on one of the pointer points at the top of a chart. Place your other finger on the other pointer point at the bottom of the chart.
Example Output: A

Example Input: [header] How to get new patients for a dental practice [title] Start by researching your competitive market. [substeps] Look at how large the practices are around you and what they offer their patients. Use this information to carve out a niche for your business. <sep> (A) Research the types of dental practice your business has so you know what services are in line with your needs. [title] Research the pay models you already have. (B) You may specialise in a different trade or only offer veneers. [title] Collect references, referrals, rankings and graphs from your clients. (C) The ideal dental practice is two or three times larger than other working clinical practices, many of which includes specialty dentists. Research the salaries of particular dentists before selecting a career path that benefits your customers. (D) See what advertising of theirs catches your eye. Ask yourself if any of those dentists' marketing techniques will fit your business.
Example Output:
D