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:
We see a rowing machine in a exercise room. a lady <sep> (A) picks up a machine and lifts it to her shoulder, then drops it. (B) starts putting her feet in the turning machine. (C) sits on the seat and pulls the cord of the rowing machine. (D) pushes a machine.

Ex Output:
C

Ex Input:
[header] How to always make your layups in basketball [title] Consider the underhand layup. [step] You lay the ball with your hand under it. The ball leaves your hand gently and it causes a nice and smooth touch on the backboard. <sep> (A) Sure, layups leave your hand at the bottom of the board, but this can make your layups look a little less like a game. Use your legs to hold the ball up while you make a deal with the side of the board. (B) This is useful if you are driving your way towards the basket and are unable to slow down and take the time to aim. [title] Use the overhand layup, if you prefer. (C) Plus, the ball is so easy to hit, you can serve the ball in front of you and toss it behind you as you get the other side. [title] Do not just play anywhere else on the team, stay wherever you are. (D) The " underhand layup " is generally considered to be a very accurate layup, but you may miss it for some players. Not all layups are created the same way.

Ex Output:
B