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 Input:
[header] How to treat ingrown eyelids in dogs [title] Look for squinting. [step] Squinting is an easily recognized sign of eye irritation. Your dog may squint if it feels like there's something in the eye that it can't get out. <sep> (A) In this case, the ingrown eyelid is causing the eyelashes to rub directly against the eye. If you can't tell if your dog is squinting, compare the size of your dog's irritated eye to the other one. (B) This is not always an indication of eye irritation. It's often the case that tears will build up within the eyelids, which can cause the eyes to appear unfocused and dry. (C) It may also display its eyelids twitching or blinking repeatedly. Some dog owners find it embarrassing to have their dog squint because of its inability to see. (D) Visit your vet if you notice : [substeps] Squinting irritation blockage of the eye. This is the case with retinitis, which causes squinting.

Ex Output:
A


Ex Input:
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.

Ex Output:
B


Ex Input:
Words on screen present "ricardinho 5 anos de magia" appear. Ricardinho appears running on several fields of play both indoors and out. he <sep> (A) scores several goals into the nets at different games. (B) basically runs on the field, chasing a ball, backflips, and turns. (C) at the top of a slope performing several tumbling jumps, including acrobatics. (D) discusses the technique used inside the field and with players holding racquets and occasionally dancing.

Ex Output:

A