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 plant switchgrass [title] Pick a switchgrass variety. [step] If you look for switchgrass at your local nursery you may just find a plant that's labeled " switchgrass, " but there are actually several varieties that differ in color and size. Switchgrass blooms for almost half the year, and during the winter and spring it's usually brown. <sep> (A) [substeps] Magnolia trees produce about 50% of the moisture. Maple trees produce 50% of the moisture per year. (B) Both varieties of switchgrass produce pretty stunning flowers, unique patterns, and flowers. Most also have phlebotomists at the planting areas where it grows. (C) These are factors to keep in mind when you're choosing a variety for your garden. Here are a few types commonly grown in home gardens : [substeps] Northwind: grows four to six feet tall and produces yellow blooms. (D) Pine needles will establish a base that's ready for planting a newer, more established fire from. [substeps] Switchgrass colors for more variety can also be found at a garden center or online.
C

A machine draws a face on a pumpkin. the lights <sep> (A) and the paint on the pumpkin flicker. (B) turn off and it shows the carved pumpkin turned on. (C) flash as children shuffleboard across the pumpkin. (D) flash on and off.
B

[header] How to tie down a kayak [title] Get padding for your roof rack. [step] Padding will prevent your roof rack from damaging your kayak during your drive. You can use padding blocks that sit on top of the roof rack bars, or you can use padding that wraps around and velcro over the bars. <sep> (A) [substeps] You can find roof rack padding online or at your local sporting goods store. [title] Get kayak straps with cam buckles. (B) Padding will also support the kayak in case it falls over or stalls out. Make sure that the padding you choose is sturdy and waterproof. (C) [substeps] Layer padding onto your roof rack bar bars, and lay the padding over the bars so that it sits parallel to the ground. Place a helmet or hood over the top of the padding. (D) Padding can be left on the roof rack bars or on the back of your kayak. [substeps] Padding blocks, with built-in padding, can be purchased at many craft stores or online.

A