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". 

[Q]: A woman cleans a cafeteria floor with a mop while occasionally talking to the camera. the woman <sep> (A) uses a mop on the floor under her chair and in a bucket. (B) uses the mop around the tables and some seating areas as well as around fork corners. (C) uses a mop nozzle to clean the floor. (D) walks to and cleans a different part of the cafeteria floor.
[A]: D


[Q]: [header] How to effectively use email at work [title] Allocate specific times of the day to read and respond to your e-mail. [step] If you don't stay in control of checking your e-mail, you may end up wasting too much of your work day checking it. Try to respond to emails immediately. <sep> (A) While you can use your email system to get more emails, remember to adjust your work email usage to accommodate any change in time. [substeps] Use social media to check your e-mail and read your e-mail. (B) [title] Organize your email whenever you are in it. [step] Effective use of work email includes deleting emails you know you won't need as you read them and filing those that you will need in specified folders. (C) Staying in control of your personal email should be your top defense when handling an in-office correspondence. [title] Identify your e-mail's subject line. (D) Or try to set an automatic schedule to read them at other times. [substeps] Plan to read at least once a day, unless you work on a busy schedule.
[A]: B


[Q]: [header] How to hump ponytail [title] Start with your hair down and part a section out about 1.5-2 inches (3.8-5.1 cm) wide by 1 inch (2.5 cm) in the front center of your head. [step] This size depends on your head and the results you want. [title] Put the parted hair in a rubber band or bobby pin. <sep> (A) [step] If you have a ponytail, wrap the hair around the rubber band until it almost touches your scalp. Double down to make sure it is secure. (B) [title] Put the rest of your hair in a pony as you would normally. [step] If you have shorter hair or flyaways you may want to use hair spray. (C) [step] Pull your hair in to secure it and avoid letting it fall down into your face. [title] Repeat the process as much as needed to secure the hair in place. (D) [step] Or you can use ponytail spray, any hair spray will do. [title] Move the plastic hair roll into the ponytail.
[A]:
B