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 lady holds a toothbrush as a child sits on a counter. the lady <sep> (A) scrubs the child's teeth. (B) brushes the boys teeth. (C) easily cleans the teeth of the child while kissing him. (D) moves cake cakes a to see if the child likes them.
[A]: B


[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 determine the sex of a guinea pig [title] Do not examine cavies who are younger than three weeks old. [step] Newborn cavies can be rejected by their mothers if they are handled by humans, as your smell will end up on their coats. Newborn cavies can also become easily distressed when away from their mothers, leading to a very difficult time trying to examine their genital area. <sep> (A) [substeps] Many baby guinea pigs can get cold quickly and may become too cold during the examination. If you feel you need to examine a baby guinea pig that is three weeks or younger, you should try to do it quickly and gently. (B) [substeps] Cavies should be taken to a veterinarian to be examined. They should be kept in a monogamous home. (C) [title] Check for signs of aggression when selecting a toy. [step] Cavies can become easily agitated whenever they're alone and need to be handled by a young adult, particularly when exercising. (D) [substeps] As with any food, do not contact a vet if you see an individual cakie sniffing in someone's area. [title] Ask for a rejection to determine the sex of a guinea pig.
[A]:
A