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". 

Input: Consider Input: [header] How to change trackpad settings on macbook pro [title] Find the system preferences. [step] Starting from your main desktop screen there are two ways to find the system preferences where the mouse and touchpad settings will be located : [title] Bring your cursor to the bottom screen and find the system preferences application. [step] The icon looks like a box with three gears inside it. <sep> (A) Open that to find all your system preferences. [substeps] Alternatively, you can use the spotlight feature. (B) On macbook pro this icon resembles a round blue square with a horizontal green dot on it. On other applications this icon is actually a box with a gear, and is small in appearance. (C) It can be located on the taskbar or in the upper left-hand corner of the window. [title] Let the system preferences application perform its work. (D) [title] Click the customize key in the dialog box. [title] Follow the on-screen instructions to change the customization function.

Output: A


Input: Consider Input: [header] How to make filling steak salad [title] Wash and slice the lettuce and cucumber, and add them to the salad bowl. [step] The lettuce should be sliced about 1/2 " wide, and the cucumbers should be quartered lengthwise and then sliced. The salad bowl should be medium-large sized. <sep> (A) [substeps] You can also wrap the top half of the lettuce with aluminum foil, and then set it aside for later. [title] Heat oil in a shallow frying pan or skillet and slice cucumbers over medium heat. (B) [substeps] If you have any extra long slices of lettuce, cut those into thirds. [title] Add the mozzarella cheese to the salad bowl, and toss until everything's combined. (C) [title] Combine the olive oil and turmeric with the lettuce, mix well, and pour in the juice from your scallions. [step] You can speed the process considerably with olive oil and turmeric. (D) [title] Thinly slice and submerge the lettuce in the water. [step] Make sure that the water covers every inch of the lettuce.

Output: B


Input: Consider Input: Then, the person ski over the rails of a home turning ans spinning and then land on the street. then <sep> (A) , the person ski down the hill kicking in the air until start walking. (B) , the person ski in shows the paintwork of the car as a trophy. (C) , the person ski up a hill crossing a bridge. (D) , a person ski over the fence of a walking bridge and also ski on the stairs.


Output: D