instruction:
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". 
question:
[header] How to dry out wet currency [title] Find a dry space. [step] Make sure the bills are kept in a room with good air circulation to lessen the time it takes for the bills to dry. Keep the bills in an area where they won't get blown away or easily lost. <sep> (A) [substeps] At home, you will be able to air dry your currency if your bills stay wet. [title] Store your currencies in a dark, dry place. (B) Avoid putting the bills near open air vents or next to tight crevices where the bills could fall. Try arranging them on the edge of a sink so the water will drip to the ground. (C) Good air circulation should not damage the bills, but it shouldn't be expensive either. [title] Make sure the area is clear of wet or air-logged fabric or paper. (D) [title] Keep your bank account secure if possible. [step] Also, to help the currency from drying out, make sure the extra cash is well hidden in the bank so it isn't moved quickly to prevent the contents from spoiling or breaking up in transit.
answer:
B


question:
[header] How to solo travel to vienna [title] Plan to stay in a hostel. [step] When traveling alone, it's always a good idea to stay at a hostel. Not only are hostels generally cheaper than hotels, this will help you meet people during your travels. <sep> (A) Taking advantage of free accommodations can help you pass the time and save money. [title] Plan initial backpackers getting used to the cities and customs of vienna on the flat travelling budget. (B) While there are many events you may enjoy alone, vienna has a booming nightlife. On occasion, you may want company for a night out, so a hostel is a good option for this. (C) It will also offer a safe, modern way to escape from the nightlife. An hostel is also a good place to set your budget on a day-to-day basis as you decide if you want to stay alone. (D) Search online for hostels near you if you want to take a trip somewhere you've never been, and plan to stick to the hostel's offerings. [substeps] The best traveling companions who are available in these places will be people who seem friendly, adventurous, and easily reunited from their long life.
answer:
B


question:
[header] How to be thorough in your oral hygiene routine [title] Clean your teeth at least twice a day. [step] The best oral hygiene habit to get into is to brush your teeth at least twice everyday-once when you wake up in the morning, and again before you go to bed at night. If you do absolutely nothing else for your teeth, at least do this. <sep> (A) For your other hygiene duties (like keeping your teeth clean, eating healthy, taking a shower, etc. ), do the following : [substeps] Gently suck on a paper clip or pencil. (B) [title] Wait at least one hour after eating to brush your teeth. [step] When you eat and drink during a meal, the enamel on your teeth can soften temporarily. (C) [substeps] Check the inside of your mouth to make sure you don't have anything in your mouth that is also stinky or bad smelling. If you do have some, don't put that into your mouth. (D) [title] If you are going to be exercising, be sure to stretch, too. [step] At regular intervals throughout the day, you should stretch up and down to stretch out every muscle involved in exercising.
answer:

B