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:
[header] How to set up a baked potato bar [title] Prepare ahead of time, even the day before. [step] This way, the toppings will be ready and you can focus on preparing for the party event. Make sure all of your topping items are covered in their serving containers and put them into the refrigerator ahead of time. <sep> (A) [title] Put together your mixers and dipping sticks. [step] Using your pre-prepared ingredients, use the pouring and collecting method to start heating your ingredients. (B) [substeps] Don't prepare foods more than 24 hours ahead of time. Keeping them as fresh as possible is important. (C) [title] If you plan on using frozen toppings, have them freeze. [step] You want them to be thick enough to last. (D) [title] Cover the baking sheet with 2 " baking paper. [step] Turn the temperature to medium-low, and place the side dish on the baking sheet.

Ex Output:
B


Ex Input:
A mini pool table has a set of colorful pool balls set up in the middle in a triangle shape and the white ball is alone. a man <sep> (A) walks into the pool room wearing an orange swimsuit and begins playing with the ball as a lot of people are standing around by the pool. (B) approaches the mini table, touches the white ball and moves it into position to hit it with the pool stick. (C) is talking to the camera and showing various machine that appear to be emergency preoutfits. (D) of average height, wearing a blue shirt and glasses competes pool holding a rubik's cube on his right hand, a current type of swiffer machine machines sitting on a mat with two wheels to help you.

Ex Output:
B


Ex Input:
[header] How to fit a door handle [title] Measure 41 inches (100 cm) from the floor. [step] Although you could follow the directions that come with your handle instructions, the most common placement for a door handle is 41 inches (100 cm). Place the end of a tape measure on the floor and mark the narrow portion of your door with a pencil. <sep> (A) [substeps] You can also measure the height of the other door handles in your house and use this measurement when marking the handles. [title] Attach the door handle kit's template to the door. (B) [substeps] Make sure the measurement is accurate on both sides. [title] Mark the width and height of your door. (C) This portion of the door handle will serve as a guide, as you need to place your staple on your left-hand side. Once the rest of the door handle is directly on the floor, find the spot where the staple is (straight edge) to be applied. (D) [substeps] Once you have determined this, you can reverse the measured vertical diameter for the door handle by erasing the edges of the tape measure and taping the area you marked with super glue or tape. [title] Measure your door handle's diameter using the measuring tape.

Ex Output:

A