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:
A group of people are in a gym playing dodgeball. a logo <sep> (A) appears and clears the tiles. (B) representing dartmouth appears, followed by other words. (C) appears on the screen. (D) shows up with arrows.
answer:
C


question:
[header] How to know if your dental fillings need replacing [title] Watch for tooth sensitivity. [step] If you have fillings that need replacement, you'll likely feel it first. Paying attention to the physical symptoms of old or decaying fillings can let you know if it's time to have your dentist replace them. <sep> (A) One sign that your fillings may need replacing is if you have tooth sensitivity to temperature, sweets, or pressure. [substeps] Pay attention when you bite into any cold, hot, or sweet foods. (B) Teeth sensitivity occurs when gums become severely stained with white blood. These white discolorations are mainly due to gum disease, but most commonly introduce a white blood cell colony to the side of your mouth. (C) Once your doctor notices an increase in tooth sensitivity, he or she can return you to the dentist. [substeps] Are your teeth hurt or moist? Severe tooth pain, cramping, sensitivity, or tingling are all signs that they need replacement. (D) [substeps] Bad tooth sensitivity is usually not a problem until it gets worse and you start to feel pain. You may experience sensitivity at night and bad teeth at the same time.
answer:
A


question:
[header] How to avoid getting your gmail account suspended [title] Read the terms of service. [step] To use gmail, you must agree to their, and to avoid account suspension, you might abide by those terms. Know your rights and your responsibilities as a gmail user. <sep> (A) [substeps] Some states ban user-accounts if you are a licensed user-in a subject at an address where your records were entered-not in u.s. legal grounds (this includes fraud and/or malicious use of your judgment). (B) Gmail is your employer, and its ability to punish you at the end of a year cannot be penetrated by any other company. If you are a younger person, then employers always have to accept that you refuse to hear from them. (C) [substeps] If you are the seller of electronics, then you probably aren't drinking your drinks by an hour. Only use these products and share your information with others. (D) [title] Adhere to all google terms of service. [step] Your gmail account can also grant you access to other google products and service, such as youtube, google +, and blogger, which means that not following the terms of service for any of those sites can also impact your gmail account.
answer:

D