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 section citrus fruit [title] Wash your hands and the fruit because the juice will flow as you cut. [title] Use a sharp, thin-bladed knife. [step] Peel over a bowl to catch the juice. <sep> (A) [title] Begin by cutting off the ends of the citrus fruit--orange or grapefruit. [title] You can see how thick the peeling is, so cut into the peel till you reach the fruit. (B) Squeezing the fruit before you cut it will cool it. [title] Immerse the fruit in lukewarm, unobstructed water. (C) [title] Cut in a way that is not too noticeable. [step] It doesn't have to be long and sharp-sharp, unless that is what you would prefer it to be. (D) [title] Cut the entire peel from the citrus fruit. [step] Make sure to slice down, making sure to avoid leaving any sharp or pointy edges of the citrus fruit.

Ex Output:
A


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:
[header] How to get rid of tapeworms in your pets [title] Look for common symptoms. [step] In general, signs of tapeworms can be difficult to spot. The most obvious sign is when you spot little segments of the worm-almost like grains of rice-around your pet's anus or in its fecal matter. <sep> (A) These types of worms are common around the abdomen, spine, skin, feet, genitals, and thighs. Smaller, non-common signs include diarrhea, weight loss, fatigue, weakness, and lethargy. (B) Sometimes, behavioral clues might tip you off. If your dog seems to be dragging its butt on the carpet more frequently, you may want to check for tapeworms. (C) [substeps] Symptoms include small, squirming balls of white, grey, or yellowish stool. Lesions in the anal region or the anus, however, work very similar to tapeworms-the worms push them up into the secretions or draw them down. (D) [substeps] These may appear as " black spots " or colored blobs below the worm's actual size. The light source can also show scaly patches on its skin, especially along the head and anus.

Ex Output:

B