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]: Multiple colors and designs flash across the screen. women <sep> (A) are shown completing pairs of women's first pair. (B) gather onstage as they are about to perform. (C) are interviewing a man in a room in front of an orchestra, with a man sitting on a couch nearby. (D) alternate with hairspray and styles to help themselves style, style, and style.
[A]: B


[Q]: This video allows viewers to hear the testimony of a customer who has used the pro roofing service. First the man tells how he heard about the service and how great it is. he <sep> (A) also says that he chose pro roofing because the neighbors chose it and persuaded him by telling how great the service is. (B) gets the materials to do the job and is joined by a group of small children who are drinking lemonade at the lemonade stand and talking. (C) starts by explaining how he is going to first tell the detail of creating a casing using an iron, then he starts on eggs and bacon. (D) talks about some graphic details.
[A]: A


[Q]: [header] How to watch a dog for stiff or limp movements [title] Look for a limp gait. [step] A common sign of distress is a limp gait. Your dog may limp as they walk on their paws. <sep> (A) A limp might signal that your dog is in pain and having to walk around constantly. [substeps] Also, a dog's gait might be stiff and liquid-like. (B) You may notice your dog's gait becomes stiff immediately and then wobbly, or the dog slides with reluctance or walks on wobbly legs. [substeps] A limping dog may have slowed down the pace of walking, or they may slump on the ground when walking and wither even more quickly. (C) The dog may also hold up one of their legs. The limp movement may be in multiple legs, so the dog may walk on different legs at different points during the day. (D) This type of gait can indicate too much stress on the joints or reduce mobility or coordination. [substeps] If your dog has a limp and not much coordination or coordination, it may be referred to as limping.
[A]:
C