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 make goat cheese [title] Place your milk over medium heat. [step] Measure your milk into a saucepan. Place it on the stove over medium heat. <sep> (A) Make sure it is at a medium heat. Heat the milk at medium until it reaches a heat temperature. (B) [title] Heat the milk until 180 degrees fahrenheit (87 degrees celsius). [step] Stir the milk frequently to make sure it heats evenly throughout. (C) Let it heat until it reaches the temperature at which you want it. This should take approximately 5 to 7 minutes. (D) Stir it every two minutes, or until it reaches a boil. When milk boils or bubbles, it needs to be warmed so that it is completely dissolved.
Output:
B