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".

Ex Input:
[header] How to get your ferret spayed or neutered [title] Verify that your ferret isn't already spayed or neutered. [step] Ferrets sold at pet stores are almost always already spayed or neutered. Many breeders also spay or neuter kits, or young ferrets, before selling them. <sep> (A) This will ensure that your ferret will not be harassed or misredirected. [substeps] Ferrets that already have an owner must also be spayed or neutered before they sell them. (B) [substeps] You can get your ferret spayed or neutered immediately upon the transmission of your ferret, leaving a good deposit for a new starter puppy, but will have to go through much more patience. [title] Ensure that your ferret can still eat. (C) [title] Familiarize yourself with the type of breeding location you need. [step] The first hurdle in breeding a ferret is to get it spayed or neutered. (D) [substeps] Purchasing a ferret that's already spayed or neutered is in your best interest, since the operation can cost a lot of money. If the store is uncertain, you can also take the ferret to the vet.

Ex Output:
D

Ex Input:
People are standing in a swimming pool. they <sep> (A) are playing a game of water polo. (B) put on protective caps to ward off the cold. (C) dip a sponge into the water. (D) push themselves through a hole in the water.

Ex Output:
A

Ex Input:
[header] How to develop in your career [title] Create a career plan. [step] You must have a clear picture of where you plan to be in 5 years , 10 years or 20 years down the road in your career. The first step to mapping your future success is determining the end destination. <sep> (A) While you can develop your timeline on your own without starting any of your main careers yet, by creating a clear plan, you can keep yourself motivated and prepared for long-term success. Focus on specific goals and move upward towards more specific goals as time passes. (B) Do not focus on the end destination or what is expected of you. Instead, be mindful of how much time you need to put into accomplishing your career goals. (C) [substeps] As you examine the goals you would like to achieve in 5 years, your career will start to change considerably. As you examine the goal as you put together your life plan, you can decide how you plan to achieve it and if you would need to go into business for it. (D) [substeps] Plan to review your career goals annually to determine if you still desire the ultimate objective in your plan. Career plans may change over the years as goals and desires change.

Ex Output:
D