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 eyeliner wings even [title] Cut off two small pieces of tape. [step] You can use household scotch tape, or you can use surgical tape if your skin is a bit more sensitive. You will need one small piece for each eye. <sep> (A) You can always use 24 to 48 segments of duct tape if you want to make more liner. [substeps] Keep in mind that your wings might start to go out of style once the tape has dried. (B) [title] Use your tweezers to prick each eye in the " c " shape using the scratch tool. [step] Each eye needs to be in roughly the same shape, preferably with parts without movement. (C) [title] Make two smaller butterfly-shaped lines with the tape : [step] You can make a smaller butterfly-shaped wing by cutting it in half. Before you brush it over your face, wind it around your nostrils to make one side longer. (D) Fold one corner of the tape down, so that it creates a little flap that will make it easier to peel the tape off of your skin. [title] Place the tape on the corners of your eyes.
Example Output: D

Example 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.
Example Output: D

Example Input: [header] How to search in mail on a mac [title] Open the mail application by clicking on its dock icon. [title] Click on the search bar. [step] It should be located in the upper right corner of the mail window. <sep> (A) [title] Click on an item on the window. [step] Find and click on that item on the option on the left. (B) [title] Click on : [step] Mail from blackberry-lead. [title] Select the word that you are looking for in the search bar. (C) [title] Navigate to the spam folder on the left. [title] Click the " spam " button. (D) [title] Type a key piece of information relating to the message you are searching for. [step] You will see that even as you start to type your search word (s), mail begins to make suggestions.
Example Output:
D