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 create a beauty regimen for oily skin [title] Make sure that your skin is oily and not another type. [step] Do some research on the topic. Whether it be online or with a dermatologist. <sep> (A) What does the oily undertone mean to you? How can you get rid of it in appearance and makeup? [title] Consult a dermatologist. [step] See if they would recommend a beauty regimen for oily skin. (B) Look for people who specialize in beauty products like foundation, moisturizer, primer, and eyelid gel and prepare with them. You will probably want to know if your pores are smaller or more visible. (C) You may think you have oily skin, but you may have combination or normal skin. [title] Look for products in stores suited for oily skin. (D) Make sure that your skin is dry and that it is scrubbed with a gentle cleanser, toothbrush, or a mild moisturizer. [substeps] Ask the dermatologist to examine your skin to get an idea of its ideal oil levels.

Ex Output:
C


Ex Input:
[header] How to protect your intellectual property [title] Know the three types of intellectual property. [step] There are three different types of intellectual property that you and your business may have created. Each can be protected under the law, but there are different categories for each one. <sep> (A) A shortcut to remember the differences between the three is that a patent protects the invention, the copyright protects the artistic expression of the invention, and the trademark protects the brand name. [substeps] If you have invented an item or system that is new, useful, original, or ornamental, then you may be able to patent it. (B) [substeps] Trade secrets are the only kinds of intellectual property that you and your team can sell. Goodwill is the only type of intellectual property which you can earn without investment. (C) Realize the following basic categories : [substeps] Intellectual property. This is non-exempt from federal and state laws. (D) To protect intellectual property, you must be licensed, insured, and have information about how this performance impacts you and those involved. [substeps] Private intellectual property is allowed only if there are only two parties involved, or if the business isn't trademarked.

Ex Output:
A


Ex Input:
[header] How to look refreshed when you wake up [title] Let in natural light. [step] Sunlight, or an artificial alternative, helps your body accept the awakening. Not only will you wake up easier, but you'll reset your body's clock, feel better rested, and improve your mood. <sep> (A) [title] Do some exercise first thing in the morning. [step] Exercise increases body temperature and releases endorphins that help you awaken. (B) [substeps] Set an alarm and let it go off at sometime in the day. Studies have shown that people who select natural sunlight reduce their risk of developing sun-related disorders, such as cirrhosis or cancer. (C) [substeps] Get in the habit of letting in natural light in the morning. Whether you're seeing a movie, taking a walk in the park, or watching a new show, sunlight will keep you energized. (D) [substeps] You don't have to spend every waking moment of the day in the sun. Window exposure seems to be the only positive stimulant for most people.

Ex Output:

A