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 Q]: [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.
[EX A]: C

[EX Q]: [header] How to become a catholic priest [title] Meet the basic requirements. [step] In the roman catholic church, a priest must be male and unmarried. Many eastern catholic churches will ordain married men, generally in their native country. <sep> (A) [substeps] Although there are no formal requirements or bans, anyone with " homosexual tendencies " must generally " overcome " these for at least three years before ordination. You must be at least 25 years old to become a priest, but this is rarely an issue unless you complete your studies unusually early. (B) Some churches will not allow unmarried unmarried men to enter the clergy as ministers. You must have both a master's or master's doctorate in theology. (C) This is because the catholic church is generally in an episcopal position, offering women the third class (those who are not catholic). The church is not part of the individual church or a separate group of people, and thus is not an adults, youth, or christian organization. (D) However, if you want to become a petalburg and a petalburg, then maresolving can be done. The amount of distance you will need to hike to make the trip is created by space pressure.
[EX A]: A

[EX Q]: [header] How to unlock tracfone mobile phones [title] Call tracfone. [step] Contact customer service at 1-800-867-7183 between 8:00am and 11:45pm, eastern time (et), 7 days a week. [substeps] If you did not buy your phone through tracfone, it is likely unlocked already, and no code is needed. <sep> (A) When you call, ask how long it should be on your phone or get a confirmation email for garfield. [title] Run an internet search for " tracfone mobile phones. (B) Look for a white box containing the code " 192.168.0.1. " if you do not see the code on the box, then replace it with the united states exit code (). (C) [title] Request an unlock code for your phone. [step] The representative will verify that your phone and account meet all the necessary conditions to be unlocked. (D) If you receive a voicemail notifying you that a call was unsuccessful, call customer service at 1-800-627-4590. [title] Place a text message (optional) on each call.
[EX A]:
C