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:
The men bend for the dogs to jumps on the back and throws the frisbee far and the dogs bring the frisbees. The dog jumps on the back of a man to catch the frisbee. also <sep> (A) , they throws the frisbee above we mat, the dog jumps again, throws the frisbee and the men collide and the dog jumps on the man to catch the frisbee and toss it. (B) the dog lifts the lawnmower and throws it off into the distance. (C) , a man does a flip and lands on the back of a man, the dog foals everywhere. (D) , men throw the frisbees far and the dogs catch them in the air.

Ex Output:
D


Ex Input:
[header] How to buy alcohol online [title] Order alcohol only if you're of legal drinking age. [step] Buying online might seem like a good option if you are underage, but it can land you in a lot of trouble. The law limits the drinking age for a reason. <sep> (A) Don't put yourself in a bad situation! [title] Follow the same laws for buying locally in your area. [step] Ordering online will not exempt you from your area's restrictions on buying alcohol in person. (B) ( even better, it isn't illegal. ) read the laws when you are curious about your choice. (C) Nonetheless, you should look for alcohol in liquor stores or online sellers. [title] Weigh the pros and cons of ordering alcohol online. (D) You can find the rules of drinking online, and most law enforcement agencies now have regulations regarding underage drinking. [substeps] Many copyright infringement lawsuits involve the intellectual property of the other party.

Ex Output:
A


Ex Input:
[header] How to open a padlock [title] Look on the back of the lock to find the combination. [step] Most padlocks will have the combination listed either on the back of the lock or somewhere within the packaging. Look for a three digit code when you buy your lock. <sep> (A) [substeps] Also look for a colored one that indicates which way the lock would turn when open. The combination may also have an after a number or letters. (B) You will need to confirm the combination after you open the lock. [substeps] If you do not know the three digit combination, it may be difficult to read. (C) [title] Turn the dial at least three times to the right. [step] Turning the dial three full rotations clockwise will reset the numbers and allow you to input the first number in your combination. (D) It should be written on the padlock itself, either on the back or directly under the combination pattern. It's normal to have a few different combinations when purchased with a lock.

Ex Output:

C