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 kill fruit flies [title] Use rotten fruit. [step] Your fruit fly problem probably didn't start until you realized you left out some fruit that eventually rotted. Use the method that gathered the flies in the first place to capture them again, but, this time, lead them to a more morbid end. <sep> (A) Kill the flies by pulling them from their nest or by using heavy chains with tongs to catch them and place them in a bucket or the living room. You can also use animal waste such as fish and duck urine. (B) Place a piece of rotting fruit in a bowl, and stretch clear plastic over the top. Cut several small holes into the plastic using a toothpick, and leave it near the site of the flies. (C) After trying to capture twice as many flies as you can, remove the unpleasant fruit pieces from the package and bake them for 2-3 minutes. The flies will be floating on top of the sweet jam when you remove the fruit from the jam. (D) [substeps] Check canning jars for gnats, mealy bugs and flies. Purchase flowers from the garden store, if you don't have all of the produce nearby.
A:
B