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 get amaryllis to rebloom [title] Remove each flower as it fades. [step] Once a flower has faded, cut the flower where it meets the main stalk with a clean knife or scissors. Make sure to remove the green lump and thin green stem attaching the flower to the stalk. <sep> (A) Try not to twist the stem as you remove the flower from the plant. [title] Wait patiently for the flower to recover from its old color. (B) Once all of the flower is removed the green vein will be visible from above the plant as well as around it. After removing the flowers make sure to cut off the main stalk in the same area. (C) [title] Place each flower beneath a warm lamp in a warm room or among light fixtures. [step] Keep the room warm, at least 95% to make it easier for amaryllis to rebloom. (D) This prevents the plant from producing seeds, which requires a lot of energy that could be going into survival and growth instead. [title] Cut the flower stalks once they yellow or sag.
A:
D