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 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 clean a vornado fan [title] Clean out dust in the outer grills using a vacuum cleaner brush. [step] You can use a brush attachment on a vacuum cleaner to clean out all of the dust from the outer grills. Make sure the fan is unplugged before vacuuming. <sep> (A) [title] Place a cleaning rod in each section of the fan and squirt some cleaning fluid through each rod. [step] Avoid getting any grease in the vents or rest tray. (B) Some of the cleaner should be removed from the outside if you use a cloth and brush as cleaning instructions are laid out in the manual. [substeps] Avoid cleaning the outer grills with dust because it can detach some of the insulation and contribute to the fan's cooling. (C) Wipe down the inside of the cover every few minutes so you can put the fan back together. [substeps] For maximum efficiency, you should wash your vornado fan at least once a month, which is right after each dry run. (D) Go slowly when vacuuming to ensure you clean out as much dust as possible. [substeps] This will only clean the outer part of the fan, not the inside blades.

Ex Output:
D


Ex Input:
[header] How to elope abroad [title] Choose a destination first. [step] Each country has different requirements for getting married within its borders, and those requirements often depend on your citizenship. Choosing a destination should be the first thing you do, because it will determine what your next steps need to be. <sep> (A) [substeps] Check government websites to verify that you have some planning to do. Many places, some cities and not all major cities, do not agree to a couples' religious relationship. (B) [substeps] When you go to the country, any commitments to the country will be explained in the destination bank statement or on your passport. Leaving a country to get married can be unpredictable, and you can affect the financial situation for those who live there. (C) You'll need to visit a country or country where you're able to get married, in order to understand what the right field or nationality are for your relationship. [substeps] Generally, your spouse will have to prove at least some ability to reasonably describe country borders, regardless of where you are. (D) [substeps] For example, mexico is a popular wedding destination because many of the resorts there have lots of experience hosting weddings for non-citizens. Puerto rico, france, and italy are also popular wedding destinations for non-citizens, but all have varying legal requirements.

Ex Output:

D