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 be a roller hockey goalie [title] Obtain all the right equipment-all the pads, the helmet, and everything else. [step] Don't try to play without it! [title] Stretch out thoroughly. [step] You should have some type of routine or comfort zone to get into the right mindset. <sep> (A) [title] Have your body on ice and ready to catch the puck (s) any pop off. [title] Lift your arms, but not too quickly. (B) If you just sat quietly for an hour waiting for the ice to harden (or something like it), you will feel tired soon after your session. Still, warming up and stretching will help your body acclimate to the cold one year ago, and you will gain muscle. (C) You'll probably find you need to stretch out much more than any of the other players. Join in the player stretch-out then move onto doing some personal stretches. (D) [title] Use a ice hockey rink and keep the doors open. [step] The best part about ice hockey is that you can roll around and skate along ice in any ice rink.

Ex Output:
C


Ex Input:
Man is unning wearing stilts in a skaet park. another man <sep> (A) is intoeyete a line ofdifferent people playing stilts on the park. (B) is jumping along with the first man in the skate park. (C) is unhing a calf thnke its in stilts starting to run with them. (D) is unrolling accordions.

Ex Output:
B


Ex Input:
[header] How to create a simple checkbook register with microsoft excel [title] Get familiar with excel. [step] Excel is a spreadsheet software program that allows users to manage data and perform calculations with formulas. Excel spreadsheets are organized by rows and columns. <sep> (A) [title] Begin by searching for " excel formulas " or " spreadsheets " in the excel tab in excel 1 (excel 3.1) and heading to the formulas page. [step] Open the tools panel in the top right corner and click " options ". (B) Excel will ask you if your formula contains the following function: absolute = sum (sum simply means nothing in that cell) + a * (plus) ). [substeps] Starting with an extra row should take up one third of the column row and attaching to the left column would be math steps 2 and 4. (C) Excel spreadsheets take up a large chunk of the worksheet and it is mostly used for web-based projects or income projections. [substeps] If excel's concept exists for many years, but is often frowned upon by others, it is generally more difficult to make a simple checkbook register. (D) [substeps] You can install a desktop version of excel on your mac or pc. Or, you can use a free online app for your smartphone, tablet or computer.

Ex Output:

D