You will be given a definition of a task first, then some input of the task.
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".

[header] How to fish in a river [title] Get a good quality fishing pole. [step] A good fishing pole would be one that has a sturdy, fiberglass or graphite, a line that won't snap easily, and other features that actually work. Choose a good size for the fishing pole, such as is 8 feet (1.5 meters). <sep> (A) The longer the heavier the line, the more difficult the fishing should be. Choose a pole that can be tied to the three lengths of the rod. (B) [title] Choose good bait to take for the fish you're looking to catch. [step] Fish that live in rivers, such as sturgeon, bass, carp, catfish, etc. (C) You will be using a wider rod for shallower water, and the longer line for deeper water. [substeps] Recommendations are the thickest fishing pole that fits the sphagnum moss. (D) [substeps] How you fish is a big time! You are going to be fishing in a river. If your fishing line is too long, you'll have a lot of trouble measuring it.
Output:
B