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 vegan egg drop soup [title] Heat the soy milk in a saucepan to 180 ° f (80 ° c), measuring the temperature with a soup thermometer. [step] Stir the milk constantly with a wooden spoon to prevent scorching. [title] Combine the epsom salt and the boiling water, stirring well to combine. <sep> (A) [step] This creates the coagulant that will separate the soy milk into curds and whey. [title] Pour half of the coagulant into the soy milk and stir it once. (B) [step] Reduce the heat to low and allow the mixture to simmer for 5 to 7 minutes. Then remove the pan from the heat and wait for your soup to cool to room temperature. (C) [title] Combine the banana peels, peeled and dried-peas, and ginger together. [step] Pour this mixture into the saucepan and bring this water to a boil on medium-high heat. (D) [step] Make sure that you're heating the water and addition space before you begin. [substeps] Epsom salt can be purchased at very low prices at food supply stores.
Example Output: A

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: A woman walks into frame speaking to the camera and pointing to a sign that leads into her speaking with a man in front of a bow and arrow. the man <sep> (A) then walks up with his arrow and throws it in the direction of the woman standing in front of him and he shoots it. (B) shoots a shot for her back and she takes the arrow and shows it off to the camera. (C) starts and shows off his tattoo to the camera while also showing on the screen more shots of arrows in different locations. (D) speaks to her and puts bowing equipment on the woman and holds out the bow for her.
Example Output:
D