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 get rid of the whitefly [title] Vacuum the flies. [step] Use a small hand vacuum, or hold the furniture-cleaning nozzle of a standard vacuum cleaner. Walk around your infested plants and suck the pests from the undersides of the leaves and foliage. <sep> (A) This method is quick and straightforward, and it can remove whiteflies from all stages of the development cycle-from larvae to mature, plant-munching adults. Vacuuming is most effective as soon as you notice an infestation. (B) [substeps] Lice/hornets that have infested the insect where possible will probably cause an infestation when they have access to this species. Lice and hornets can be pregnant bees or even cobwetters. (C) [substeps] Once you've vacuumed up all of the insects, you can dismantle the insect and wash it off. Plant diseases like freeze burn-gas are very likely to have mites, fungus, or other biological problems with this insect. (D) [substeps] If possible, clean the potted plants as a habit to keep the insects away. [title] Tear off the hard outer leaves once the insects have died.
[EX A]: A

[EX Q]: A group of men plays soccer in a sand area. a crowd <sep> (A) watches the game and applauds players riding in stadium waiting for their turn. (B) watches as several goal is made. (C) watches from the the stands. (D) watch and takes pictures as the teams walk up and down the field.
[EX A]: C

[EX Q]: [header] How to care for a midnight blue rose bush [title] Pick out midnight blue roses that look healthy. [step] Strong, healthy plants will be more resistant to diseases of all kinds, so the fight against rose disease starts at planting time. Select healthy rose plants that have sturdy-looking leaves and stems and don't show any signs of disease or pests. <sep> (A) [substeps] Check for signs of disease by checking the flowers themselves. Circles of green or blue lines with cross bones are signs of disease. (B) [substeps] Look to see if any of the leaves have black spots, red leaves, or chew marks. These are all signs of disease or infestation. (C) [substeps] Use a hand or wire brush to gently brush rose petals, leaves, and stems. You can also spray bright, wet leaves with a variety of laundry detergent. (D) [substeps] You can buy dawn roses, which grow well in early spring, if you want snow roses. They also grow best in warm, sandy areas.
[EX A]:
B