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:
The doctor uses a brush to scrub nails and hands. A doctor washes their hands in a large stainless steel sink with hand soap multiple times. the doctor <sep> (A) uses the brush to rub a suture needle into his palms. (B) uses a towel to clean on the sink. (C) uses a small brush to wipe several areas on the body of the sink and change water for the other areas. (D) completely rinses their hands then clasps together and walks out of the room without touching anything.

Ex Output:
D


Ex Input:
[header] How to be a safe teenage driver [title] Make sure to stick to the speed limit. [step] Even if you are running late somewhere, don't speed. It's better to get to your destination a few minutes later than planned than to be in an accident. <sep> (A) [substeps] If you can, use the designated speed limit as the number one way to stay safe. Say, " i'm going to slow down and stop at a crosswalk or change lanes. (B) [substeps] Always turn off your lights before you get to your destination. Check your vehicle for brake dust after each turn, as white brake dust can be far from safe. (C) Not only could speeding cause an accident, but it could result in you getting a speeding ticket! [title] Use common sense. [step] Wear your seat belt no matter what, and make sure not to get caught up in any distractions while driving, such as texting. (D) [title] If you know the shortest route to your destination, your first step is to stay calm and drive slowly. [step] There is no need to panic if you are in a secluded area so stop no more than you expect.

Ex Output:
C


Ex Input:
[header] How to start a business as a minor [title] Identify your limitations and obstacles. [step] There are many difficulties that might interfere with starting a business as a minor. Many types of contracts signed by a minor are considered void. <sep> (A) For example, a minor will face illness and grief in some household and may end up in a prison that the minor cannot help out with at any time. Because of the difficulties, it will be very difficult to open up a business as a minor. (B) That is why it is so important to identify and overcome any problems before beginning a small business as a minor. Identifying what this level of difficulty means to you can help you in narrowing down your options. (C) While there are exceptions to this rule, many forms of financing, such as credit cards, are only available to people 18 years or older. Furthermore, many lenders may be hesitant to give a minor a business loan. (D) Your original legal name will remain the legal legal name for the student. The document's photo quality will cause the school's employment record not to hold up strong for a future employer, and the name of the school will remain public and for the life of an adult.

Ex Output:

C