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".

Ex Input:
[header] How to know if you have glaucoma [title] Schedule regular eye exams. [step] Open-angle glaucoma leads to the gradual deterioration of your vision over an extended period of time, usually years. Most people suffering from open-angle fail to notice symptoms until the glaucoma is very advanced and nerve damage has occurred. <sep> (A) [substeps] Glaucoma is usually attributed to a condition called retinopausal glaucoma. Doctors often refer patients with retinopausal glaucoma to psychotherapy or therapy. (B) The overall diagnosis is: glaucoma can present in two patterns: primary and secondary. Secondary glaucoma reverses almost any natural condition and the simplest way to identify glaucoma is to get three to four eye exams in a normal week. (C) [substeps] It is important to schedule eye exams every year, especially if you are over the age of 40 or have a family history or glaucoma. Open-angle is the most common type of glaucoma in the united states, affecting over 2 million people. (D) Checking your eye closely is often the first step to identifying the signs of open-angle glaucoma. [substeps] Schedule a yearly eye exam using a variety of tools.

Ex Output:
C

Ex Input:
Afterwards the woman takes the shaped dough and places it on a tray next to the stove. in the end <sep> (A) the woman puts the cake in a cookie sheet and puts it in the oven. (B) she pours several ingredients into syrup and begins baking the cookies. (C) the woman takes the tray and places it in front of her, she than instructs the girl to sprinkle the cookies. (D) , she takes out a mixer and grans the dough into a large, thick square for baking.

Ex Output:
C

Ex Input:
[header] How to dress nerd chic (for boys ) [title] Pick a shirt that matches your sense of nerd style. [step] There are varying degrees of nerd chic that might suit your tastes. You may be most comfortable with a preppier look, dressing in a button down and layering a cardigan over top. <sep> (A) Formal garments are often tailor fitted to fit your style. [substeps] A top with a bright sports logo, such as buffalo, robo, or nerf bat or a black casual shirt and skinny jeans will be ideal. (B) [substeps] For a sporty girl, try something loose, but not too loose, that fits your frame as well. For a more serious girl, stick with looser shirts and jeans. (C) However, a clean-cut graphic tee with a pair of khakis will give your look a more casual, edgier appearance. [substeps] Graphic tees are a great way to represent the parts of nerd culture you love best. (D) Or you may be more comfortable in a more casual look and wear a blazer over it. [substeps] If you don't like striped sweaters or tennis skirts, go for a t-shirt and a tank top.

Ex Output:
C