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".

[Q]: [header] How to post to a facebook group on pc or mac [title] Go to https: // www.facebook.com in a web browser. [step] You can use any web browser, such as chrome or safari, to access facebook. If you're not already signed in, sign in now. <sep> (A) [title] Click on the downward-facing arrow in the top right corner of the screen. [step] It's at the top-right corner of the screen. (B) [title] Click your profile picture at the top-right corner of the page. [step] You will see your profile picture in the upper-right corner of the page. (C) [title] Click a group to open the group's menu. [step] Click the group on the right sidebar, or the group's upper menu of options. (D) [substeps] You must already be a member of a group to post to it on your computer. See join groups on facebook to learn how to join a group.
[A]: D

[Q]: There is a large decorated christmas tree behind them. There is a woman sitting in the living room with a little girl. the boys <sep> (A) begin to climb hill on the christmas tree with an orange garland and used a brush. (B) play foos ball with the men. (C) are showing the little girl how to pierce her nose piercing. (D) start to play as the woman continues knitting the tree.
[A]: B

[Q]: [header] How to remove wax from upholstery [title] Allow the wax to dry. [step] If you start removing the wax before it has completely dried, you might smear the wax and make it more difficult to remove. [title] Ice the wax. <sep> (A) [step] Boiling water and ice cube trays are excellent alternatives to removing wax from upholstery. Use a large plastic bag and place the water and ice cubes inside of an ice cube tray. (B) [step] Place a wet, frozen cloth soaked in ice water in one corner of the room and hold it over the wax for a minute. [substeps] Make sure not to block any air holes with the cloth. (C) [step] Ice the wax to reduce the stickiness or it will harden faster. [title] Create a solution of water and a drop of liquid soap. (D) [step] Once the wax is dry, chill it using ice. Add a few ice cubes in a plastic sandwich bag and apply it to the surface of the wax.
[A]:
D