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 act during a fire drill [title] Stay calm. [step] Do not panic when you hear the fire alarm. Also, it's important to stay quiet so you can hear any instructions. <sep> (A) Also, do not get caught panicking. Staying calm will help you calm down as the fire clock ticks and alarms go off at regular intervals. (B) [title] Do not attempt to push the drill to divert the fire. [step] Do not attempt to push the drill at people or leave the master fuse unattended. (C) Turning to your cell phone or microphone can be deadly! [title] Stay warm. [step] Do not wait until the fire is out to stay warm! Your body temperature can drop, but it's better to stay near a heat source. (D) [substeps] In fact, it's important to be quiet and calm the whole time the fire drill is happening, not just when it starts. [title] Treat the alert as if it were a real fire.

Ex Output:
D


Ex Input:
[header] How to find a penpal [title] Think about what you want to send. [step] There are many different ways to correspond with a penpal, and deciding on the one that's right for you makes it easier to sort through the number of penpal websites on the internet. Some people prefer communicating electronically while others like to use penpals as a means of creative communication. <sep> (A) [substeps] The international union of mail-artists is a website dedicated to those who like sending postal art to their penpals. Iumoa is a much more niche community as it has roughly 4 , 000 active members. (B) Read the different penpal websites carefully and decide on the one you wish to write a message for. [title] Enter the number and contact information you would like to use in the address bar (in the upper right hand corner of the web page). (C) [substeps] Remember that there is no set password to choose from across a thousands of websites, but feel free to use whatever feels most comfortable for you. [title] Narrow the search criteria to near the lowest classifications. (D) Some people like to send messages on social media or email, while other people prefer to send text messages or instant messages. [title] Decide which websites you want to find.

Ex Output:
A


Ex Input:
[header] How to care for californian rabbits [title] Provide lots of high quality hay. [step] Hay is the most important food for your rabbit's health, so make sure that she always has access to lots of high-quality hay. Hay helps to provide your rabbit with the nourishment she needs and wears down her teeth as well. <sep> (A) [substeps] You can buy several types of hay from your local pet store. Choose hay that is perfect for your rabbit. (B) Timothy hay is ideal because it is rich and provides her the vitamins and minerals she needs, which are important for her health. [substeps] Hay is available as a bulk bulk in large boxes or bags and sold at your local pet store. (C) [substeps] Timothy hay can be taken from a local farm or butcher. You should provide 1 1/4 of a pear for every pound of hay you feed your rabbit. (D) [substeps] Timothy hay is a great choice for californian rabbits. Make sure that your rabbit has access to unlimited hay every day.

Ex Output:

D