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".
One example is below.
Q: [header] How to create a christmas tree forest [title] Consider the type of tree you want to plant. [step] There are a wide variety of christmas trees and include fir, pine, spruce, cypress, and cedar. These trees thrive in different climates and look different from one another. <sep> (A) It is important to research the tree before setting up your tree to try it out to make sure you can write the tree's growing season so that you can get the most supplies you need. If you're just interested in having a tree stand out, then make sure to check for the following : [substeps] Spruce trees. (B) [substeps] Trees green may be used in a mix of green and evergreen. Greens, such as pintos and olive oil, may be more delicate than these. (C) Where the trees grow together is up to you. [substeps] Spruce trees light up the night for hours in the morning and drown out the morning sunrise between afternoons. (D) Think about where your tree forest will be located and choose a tree that can thrive in that climate. [substeps] Balsam firs are a popular christmas tree species that grow in the northern united states and canada, in hardiness zones 3-5 or states like minnesota, north dakota, and montana.
A: D
Rationale: This is a good example. Only option D is about Christmas trees. So, it's the correct option.
Q: [header] How to cook beef joint [title] Buy your beef joint according to how you want to cook it. [step] Tender cuts of meat, like sirloin and fore rib, are better for roasting, while leaner cuts of meat, like topside and silverside, are better for braising. [title] Pick out a fresh cut of beef. <sep> (A) [step] When purchasing beef, make sure the meat is a deep, dark red. Look for beef containing little streaks of fat throughout leaner muscle, and with an outside layer of firm, creamy-white fat. (B) [step] Choose a cut of beef that's still fresh but that's not dripping any liquid. Remove any fat, and dice the beef till it's sweet-smelling. (C) [step] You can get the joint from your local butcher's store if you're not planning on braising it yourself. Think about purchasing very fresh cuts of beef, then pick the one that matches your braising preferences. (D) [step] For example, tenderloin or prime sirloin are flat cuts of beef. This helps prevent overcooking, for example, by roasting for a minimum of 30 minutes.
A:
A