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 treat your customer while serving them [title] When the customer approaches your till point, greet them nicely. [step] This means you should acknowledge the customer with eye contact. Say " hello " and smile. <sep> (A) [title] Apologise for any wait, no matter how short. [step] The customer might not understand why they have had to wait. (B) [substeps] Also greet them in a professional manner. Always state your name, address, and similar things. (C) Offer him or her a fresh drink once in awhile. [substeps] Remember to shake each customer's hand. (D) If you don't meet their smile they'll get bored and start saying no. To greet the customer again, do a brief " hi " and introduce them to your horde.

SOLUTION: A

PROBLEM: [header] How to relieve constipation after surgery [title] Use a stool softener. [step] One of the first medications to try if you're feeling constipated is a stool softener. These are easy to find over-the-counter and can help get you back on track. <sep> (A) [substeps] The way that stool softeners work is that they draw water into your stool from your intestines. This makes your stool softer and easier to pass. (B) [title] Take 600ml of stool softener before a meal. [step] Most stool softeners kill the production of prostaglandins. (C) [substeps] One good option for relieving constipation at the time of surgery is a stool softener. While stool softeners do provide temporary relief from constipation, they are expensive and will often disappoint you. (D) These medications are named for their antioxidant properties, which help reduce diarrhea and keep your stools from becoming irritated. [substeps] Remember that: the next time you're using an over the counter stool softener treatment, be sure to follow the dosing instructions.

SOLUTION: A

PROBLEM: [header] How to add a twitter tab on tumblr [title] Sign in to both your tumblr and twitter accounts in separate tabs. [title] Go to the " tweet button " code site at twitter.com. [step] You can do this by clicking resources] buttons on the twitter homepage or simply by clicking. <sep> (A) [title] Drag the resulting button into a " tweet " field. [step] If you don't see any placeholder or info buttons yet, look for the proper options in the left sidebar. (B) [title] Choose which twitter button you want on your tumblr page. [step] You can choose from 4 different options. (C) [title] Go to the " this blog " button and follow the provided steps. [title] Copy the code by pressing the finish button. (D) This code links through your account dialog box and to your twitter home page. [title] Click one of the buttons indicated on the trim button.

SOLUTION:
B