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 Q]: [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 A]: A

[EX Q]: [header] How to prune dracaena [title] Prune your plants in the spring before they hit the growth period. [step] From april to may, your dracaena plant comes out of rest mode and gets ready to go into the blooming season. Pruning your plants before they hit the growth period keeps them healthy. <sep> (A) This also makes it easier to shape the plants into your ideal look. [substeps] While you can prune your dracaena whenever you'd like, this helps encourage new, healthy growth. (B) [substeps] Dig around your plant and dig through the leaves and stems. Then, break or slice up any missing leaves or stems. (C) Cutting back all the flowers is absolutely essential to maintaining the stage of the plants that produce most of the foliage and fruit. [substeps] Your herbs should be pruned throughout the spring rather than the summer as this can cause them to produce fewer blooms and appear stunted. (D) It promotes a firm, healthy growth cycle for the plant. [substeps] Use a small garden pedometer to determine how many plants you should prune.
[EX A]: A

[EX Q]: A marching band is in the midle o street. behind the marching band <sep> (A) people are in s street playing. (B) the drummers are covering the ground. (C) , a tire is taken off and replaced with a new tire. (D) a fire truck is in the parade.
[EX A]:
D