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 young boy is standing in front of a mound of sand and hitting the mound with his hands. The boy begins to stomp on the sand mound. the boy <sep> (A) continues to kick the puck back and forth while others are watching his game. (B) begins to try to climb the sand mound while people walk on the ocean front at the beach. (C) then sets down the stick and begins to clap his arms. (D) continues kicking the mound of sand until it sticks out.

Ex Output:
B

Ex Input:
[header] How to assemble an emergency roadside kit for a desert climate [title] Prepare for car repairs [substeps] Include foam sealant or a battery-powered air compressor in your desert roadside kit. These will aid in a quick repair in case of a flat tire. Also store an extra jug of coolant in case your car overheats. <sep> (A) Supply any diicer you won't need to replace whenever your car loses power. A small backpack with flexible, flexible, and weather resistant backpacks are more critical. (B) Carry jumper cables and a tire jack in your car trunk at all times. [title] Stay hydrated [substeps] The temperature of the desert will be one of your worst enemies if you get stranded in a roadside emergency. (C) Using heat-powered oxygen pumps, burns fuel, or compresses materials may be delays during basic car repairs. [title] Obtain specialized supplies [title] Find the correct car mechanic. (D) [title] Buy a driver's side cooler. [step] Gas stations and convenience stores are excellent outdoor places to pack.

Ex Output:
B

Ex Input:
[header] How to edit legend entries in excel [title] Open the excel spreadsheet file you want to edit. [step] Find the spreadsheet you want to edit on your computer, and double-click on its icon to open the worksheet. [title] Click on the chart you want to edit. <sep> (A) [step] Find the chart you want to modify in your spreadsheet, and click on it to select the chart. [substeps] This will display your chart tool tabs at the top of your spreadsheet, such as design, layout, and format [title] Click the design tab. (B) [step] It should be the graph symbol on the bottom right-hand corner of the spreadsheet. If the chart has a drop-down menu, select it and click " properties. (C) [step] You'll find this in the upper right-hand corner of the spreadsheet window. [title] Click (or delete) the chart you want to edit. (D) [step] This can be an eraser chart, any chart that you'd like to use or a blank eraser chart. The chart will be converted into a file.

Ex Output:
A