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 grow butterfly weed [title] Purchase butterfly weed seeds. [step] Plant nurseries, plant stores, and nature stores sell them. [title] Decide where you want to plant them in your garden. <sep> (A) [step] Look for bamboo poles at your local areas or buy insect-proof plants. Contrary to popular belief, butterfly weed produces bright new, colorful flowers during the early spring blooming season. (B) [step] You don't necessarily have to plant butterfly weed at a specific location. You can plant any area near the roots of trees or bushes. (C) [step] If you've decided that butterflies are the only invasive plant that grow in your garden, planting weeds is not a good idea. [title] Purchase a small display box or plastic star shapes that you can use for the display. (D) [substeps] Butterfly weed grows well in many types of soil, whether it's dry soil, clay soil, or rocky soil. Butterfly weed needs a place with lots of sun.
A:
D