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".

Input: Consider Input: [header] How to make black coffee [title] Purchase freshly roasted, whole bean coffee. [step] If you can't purchase it directly from the roaster within a week or so of it being roasted, opt for a vacuum-sealed bag from a reputable national coffee-bean roaster. [title] Purchase your own coffee grinder, or grind it in the store. <sep> (A) [step] If possible, choose a burr grinder in place of a normal blade grinder. For best results, grind the coffee fresh right before brewing each day. (B) [step] Grind coffee beans in the near-black zone of a coffee grinder. You can use either a regular-size grinder or a pre-grind grinder to grind your coffee. (C) [step] Modern coffee grinders have drawbacks, as they require higher temperatures to make purified coffee. Where possible, purchase one that comes pre-boil. (D) [step] Print it onto a piece of paper, remove the lid from the coffee grinder, and grind the coffee beans in the machine's center. [title] Unplug the coffee grinder and plug it into the wall outlet.

Output: A

Input: Consider Input: [header] How to be a safe teenage driver [title] Make sure to stick to the speed limit. [step] Even if you are running late somewhere, don't speed. It's better to get to your destination a few minutes later than planned than to be in an accident. <sep> (A) [substeps] If you can, use the designated speed limit as the number one way to stay safe. Say, " i'm going to slow down and stop at a crosswalk or change lanes. (B) [substeps] Always turn off your lights before you get to your destination. Check your vehicle for brake dust after each turn, as white brake dust can be far from safe. (C) Not only could speeding cause an accident, but it could result in you getting a speeding ticket! [title] Use common sense. [step] Wear your seat belt no matter what, and make sure not to get caught up in any distractions while driving, such as texting. (D) [title] If you know the shortest route to your destination, your first step is to stay calm and drive slowly. [step] There is no need to panic if you are in a secluded area so stop no more than you expect.

Output: C

Input: Consider Input: [header] How to breed chihuahuas [title] Adopt a chihuahua to breed. [step] If you don't already have a chihuahua, you will need to get one that is ideal for breeding. Contact a breeder that specializes in breeding chihuahuas. <sep> (A) If you are looking to adopt a chihuahua you can breed, you should get it from a well-established and humane breeder that has solid documentation of its lineage. [substeps] Make sure your potential dog is in good physical and mental shape. (B) This is a good option for investors that want to go through a breed-specific final selection process before purchasing a dog from one of the breed-specific breeders. [substeps] Breed chihuahuas can learn complicated rules, including you will need to breed them yourself, or you may be able to substitute a dog from a previous relationship with one that is already bred. (C) Look around for a unique breed, preferably one that offers a wide variety of features. Remember to pay attention to age, as a young chihuahua is a rodent, and a healthy small baby chihuahua needs to be training and raised carefully. (D) Shop around a few different places before settling on one that is right for you. [substeps] Get a volunteer or mentor for this breed.
Output: A