TASK DEFINITION: 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".
PROBLEM: [header] How to elevate your hand while sleeping [title] Sleep on your back or side. [step] In order to elevate your hand while you're sleeping, you'll need to sleep on your back or on the side opposite of the arm that needs elevation. This is the easiest resting position for elevating your hand. <sep> (A) [substeps] Lying on your side not only has been shown to help alleviate hand inflation, but it also improves circulation in and around the hand and wrist joints. It's also more efficient than sleeping on your side. (B) [substeps] You can use a pillow to support your arm when you start to feel like your hand's elevating off the ground. Place a rolled up towel over your head to help prevent air from pooling near your arm. (C) [substeps] Sleeping on your stomach won't allow you to elevate your hand as easily. It's much harder to prop it up from behind if you're lying flat on your stomach. (D) [substeps] Lie on your back with the pillow propping your head up at a 45 degree angle. Your dominant hand should support the bottom of your pillow.

SOLUTION: C

PROBLEM: [header] How to protect yourself from replica watch websites [title] Use your credit card. [step] Not your debit card, but your credit card. [substeps] The only payment method you should use is credit card. <sep> (A) Using a credit card only licenses you to pay for certain services, such as security clearance. Also, you can get a replica watch at the store. (B) Then you'll pay with cash or check. If cash cannot be reached, that means that your account is not secure. (C) If you want to shop around, try to use a credit card, as they don't grant these types of deals. For example, you can use a credit card to buy super priced watches, but in return they must be an anniversary gift. (D) This is the only payment option that protects you from internet scams. Why? Because your bank has your back.

SOLUTION: D

PROBLEM: [header] How to drive a van [title] Adjust your seat and mirrors. [step] Move your seat until you can reach the pedals comfortably while still seeing all your mirrors. Adjust your mirrors so that you can clearly view the adjacent roads and just a small amount of the van's edge. <sep> (A) If you have motion sickness, you may want to sit a bit farther back than you normally would while driving van. You'll want to do some preliminary maintenance to make sure that your vehicle's airspace is as quiet as possible. (B) Since they're designed to hold cargo, many vans do not include a rear-view mirror, making your side mirrors more important. [substeps] Some vans have extendable side mirrors designed for people carrying trailers. (C) [substeps] Make sure that the front fender area of your vehicle comes completely above the seat's height. Also, avoid tilting the front fender forward too much or the car will make a wide angled curve in your direction. (D) [substeps] If possible, make sure that you are facing forward in traffic. Try to angle it as an' inverted' " v " (not a " s ") to see which side of your seat will be more visible from your side mirror.

SOLUTION:
B