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 prune bamboo [title] Prune once a year in late summer or early fall to minimize spreading. [step] Although bamboo has a rapid growth rate, you only need to prune it once a year if you do a really thorough job. Pruning your bamboo more frequently can actually cause it to send off more shoots. <sep> (A) This may sound creepy, but give it a break after it reaches the height of maturity. [title] Consider cutting back your bamboo once a year to preserve new stalks. (B) [substeps] You can trim bamboo about once a year if you haven't already pruned it to give your bamboo more roots. You should cut back twice a year to avoid overregrowing your bamboo. (C) Long branching canes can get cuttings quicker than longer reaching canes because the stalks bend to additional sunlight. Prune as much as possible every other year. (D) Mark on your calendar when to start pruning and coordinate it with fertilizing. [title] Cut down weak or dead canes in the spring to keep your plants healthy.
Output:
D