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". 

[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.
C

[header] How to catch lake trout [title] Use a light-action rod with 4 to 6 pound test line. [step] This is the best rod to use for trout fishing and allows you to use a variety of techniques to catch your trout. The lighter line has less friction with the water, allowing you cast your line to the very bottom of the lake with ease. <sep> (A) All you have to do is lightly tap the rod with your finger to get some water onto the rod. [title] Get your hand used to the catch. (B) The slower you cast the rod, the more power your line will have. [substeps] Be aware that certain fishermen only use lighter lines when they plan on doing something else. (C) [substeps] Some lake trout can be over 35 pounds, you will need a heavier rod for these. If you know you're fishing a lake that has massive fish, bring a heavier rod as well. (D) [substeps] Watch out for small rocks in the water if you're unsure how to cast your line. The rocks reflect off of lake trout very easily.
C

[header] How to make lemon sorbet [title] Mix 1 cup (200 g) sugar and 1 cup (8 oz) water in a small saucepan. [substeps] For a creamier version that's similar to lemon sherbet, you may substitute milk for any amount of the water. The more milk you add, the creamier the texture will be. <sep> (A) If you don't have a saucepan large enough to hold the sorbet, just fill a bowl with this and add the sherbet. [title] Saute the sugar and water in the saucepan over low heat for 3 to 4 minutes. (B) [title] Add 1/4 cup (59 ml) sugar and 2 teaspoons (7.57 ml) lemon juice to the saucepan. [step] Since lemon sherbet is made from seeds, seasonings don't have to be added at all. (C) Consider shaking the sugar and water regularly to prevent sticking. [title] Stir the sugar and water constantly until it thickens. (D) For an even richer, more decadent texture, you can substitute heavy cream for the water. This makes it more of a lemon ice cream and really tones down the tartness of the lemon.

D