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 numb a tooth [title] Take an over-the-counter-painkiller. [step] A painkiller like ibuprofen or acetaminophen should be your first step in trying to numb a painful tooth. These painkillers will alleviate the pain from your tooth, and should also decrease any swelling in the infected area. <sep> (A) [substeps] If you are not able to find ibuprofen, you can opt for acetaminophen instead. [title] Freeze food that contains aspirin. (B) [substeps] Ibuprofen can be applied within 30 minutes to up the duration of an over-the-counter painkiller. Follow the manufacturer's instructions and do not take ibuprofen within 30 minutes after it has been applied. (C) [substeps] Make sure you read and follow the dosage on the packaging. Do not eat anything until told to do so by your dentist to ensure you are following the proper dosage. (D) These are all readily available at your local pharmacy. [substeps] If you're treating a toothache in a child younger than 18, do not give him or her aspirin.
Example Output: D

Example Input: A crowd is gathered around a black tiled area. a man in black <sep> (A) pants in front of the crowd runs a rope around a man's neck. (B) raws is talking to the camera. (C) shirt is on the middle of the circle. (D) does some breakdance moves.
Example Output: D

Example Input: [header] How to make homemade blueberry poptarts [title] Combine 2 1/2 cups flour , 3 tablespoons sugar and 1 teaspoon salt in a large bowl. [title] Slowly shred 1 cup cold butter using crosswise motion on a grater. [title] Place shredded butter into the bowl together with the dry ingredients. <sep> (A) [title] Fill in 2 cup prepared brownies using either a grater with a brush. [title] Tilt the bowl in a single direction to try to mash the brownie. (B) [step] Mix until thoroughly combined using your fingers. [title] In a small bowl, beat the egg yolk with water, reserving the egg white until later. (C) [title] Quickly toss flour, chopped blueberries, and 2 ripe bananas into the butter mixture. [title] Allow these ingredients to become slightly sticky. (D) [title] Lightly grease the pan using a stick grater. [title] Place 1 small onion (peeled, chopped, diced) in the pan.
Example Output:
B