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:
[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 grow sweet peppers [title] Buy a packet of sweet pepper seeds. [step] Standard sweet pepper seeds, which produce, red, yellow or orange bell-shaped peppers, are available in any well-stocked garden center. If you're interested in getting heirloom varieties, check online for a wide range of options. <sep> (A) [substeps] Markets around united states can sell yellow, red, and orange bell-shaped peppers, choosing between reds with pink and yellow bases. Orange bell peppers encourage nature and native americans to plant more peppers, and red and yellow bell peppers appeal to people looking for someone with a green, rainy mood. (B) [substeps] If you're willing to put money into buying a packet, try ordering it online from a garden center. [title] Transplant your peppers and cut them into small seedlings. (C) Heirlooms come in all sorts of colors and have varying levels of sweetness. [title] Plan to sow sweet pepper seeds indoors in late winter. (D) Seed stores such as habbo and petco sell seeds for a limited number of grams or several ounces. [substeps] When picking your seeds, choose seeds that are an appealing color or thickness.
answer:
C


question:
A person is washing their hands as the words "tutorial: how to wash your hands" appears on screen. a continuous scroll of instructions <sep> (A) appear with occasional flashing words and washes appearing on the screen periodically. (B) crawls across the bottom of the screen. (C) appear across the screen. (D) is on the screen next to and below the hand wash.
answer:

B