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 breed beef cattle [title] Begin by starting up a beef cow-calf operation. [step] Follow the steps provided in the article linked in this step. [title] Buy your cows and/or your herd bull. <sep> (A) [title] Cut the small sections of fat off the calf's legs to allow the milk to settle into the calf's bladder. [title] Clean and cut the meat off the tail by pressing it off with a small shear. (B) [step] Buy the quality of cows that meet your standards, as far as having a good breeding herd is concerned. [substeps] Your herd bull should be selected to improve your herd, as he will be providing half of the genetic potential of your calf crop. (C) [step] You will want a properly fitted beef cow. Just be sure your cows or bulls are correctly fitted. (D) [step] Here are the basic techniques which are used to start the operation : [substeps] Cut a piece of leather about 12 inches thick and weigh 25 lb (39.1 kg). Place a piece of leather over the middle space where you want to work.
Output:
B