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 install a bakflip hd tonneau cover on a ford f150 [title] Place the rail of the bakflip hd on right hand side bed rail of the f150. [step] Slide the tonneau rail all the way forward to the bulk head. It is a good idea to have a squeeze clamp or similar to hold it in place. <sep> (A) [title] Slowly turn the bakflip over so it moves slowly, its going to wobble and have to be bent the opposite way of the rail. [step] Be prepared for a lot of bumping. (B) [title] Tightly wrap round tray socket on right hand rail over cover and fasten. [step] Compression disks complete a swivel mounted over rail. (C) [title] Place the included rail clamps in place. [step] Tighten with a wrench or socket. (D) This will prevent the oil from jumping up and down accidentally while the g2 is being painted. [title] Place the nikon bolt assembly inside the couplers cradle.
Example Output: C

Example Input: [header] How to format an ipad [title] Head to the home screen. [step] Press the home button of your ipad to go to your home screen. [title] Access the general settings menu. <sep> (A) [step] At the bottom of the screen, scroll down until you see " general settings. " [substeps] Scroll down until you see " general settings. (B) [step] Look for the settings app on your device, and click it. [substeps] Alternatively, you can tap on " general. (C) [step] Tap on the " settings " icon then select " general " from the options in the settings menu. [title] Tap on " reset " at the bottom-most part of the screen after pressing " general. (D) [step] Use this screen to change your location menu to default to icloud. [substeps] To enter your location menu, tap the settings app from the screen.
Example Output: C

Example Input: [header] How to get a payday loan [title] Find proof of income. [step] The lender will need some sense of your income, so gather recent pay stubs or bank statements that show how much you've been paid. [title] Gather acceptable personal identification. <sep> (A) [step] Payday lenders will want to see that you are a resident of the state where you are getting your loan. Generally, you should have a state-issued id, such as a driver's license or an identification card. (B) [step] You can use your social security number, single or llc. Proof of income is always your first and most important tool. (C) [step] This is your driver's license or state identification card that shows your name and address. It will protect you from any lender who thinks you are a victim of identity theft. (D) [step] The bank would want documentation showing your name, dates of birth, driver's license, a passport, or other basic personal identification. Check those documents and don't take anything that is not of high quality.
Example Output:
A