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:
A man combs his beard in front of a mirror in his bathroom. The man reaches down to pick up sizzors then trims his mustache. the man <sep> (A) kisses his mustache and looks still in the mirror. (B) sits in the bathtub to do shave then goes away to shower and change clothes. (C) picks up lotion which he applies to his neck. (D) shows off the trimmings.

Ex Output:
C


Ex Input:
[header] How to determine who has right of way [title] Come to a complete halt at a stop sign or red light. [step] At a stop sign, come to complete halt for about 2 seconds or until vehicles that arrived before you clear the intersection. If you're stopped at a red light, proceed when the light has turned green. <sep> (A) This will give you enough time to catch the light and clear the intersection. [substeps] Vehicles behind or behind you may not brake. (B) This blocks oncoming cars from passing you. [substeps] If in doubt, you can also tell if you're going too fast by looking ahead at the tires of that car. (C) If you are stopped before a red light signals for another vehicle, you're on your own. [substeps] This means every car crossed before you has passed, and every vehicle in the intersection has stopped before you. (D) If the intersection has a white stripe in your lane, stop before this line. [substeps] If you have a stop sign, but the street you're crossing does not have a stop sign, wait until all traffic has cleared before crossing the intersection.

Ex Output:
D


Ex Input:
[header] How to prevent medication errors in nursing [title] Utilize at least 2 identifiers that are specific to the patient before administering medication. [step] For example, along with the patient's name, ask for his date of birth to make sure the prescription matches the patient. [substeps] Have a system to identify those patients who have similar names. <sep> (A) For example, " mary messenger, " " molly anderson, " and " leyr mickitude. " [title] Ask for important medical information like birthdates or age. (B) This way, when an employee finishes a productive job, the patient's name is less likely to be called out in his place. Physicians should provide a " tag " database to provide a telltale presence when an individual receives medication. (C) Ask if the patient has had medicines prescribed in the past with similar names. This will help you to quickly identify people who have different names. (D) It can be as simple as a special sticker or marker on the patient's chart. In these instances, another identifier may be needed to avoid medication errors.

Ex Output:

D