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".

[header] How to make toasted seed risotto balls [title] Pour the stock into a heavy-based pot. [step] Bring to simmer gently. [title] Heat the olive oil in a frying pan. <sep> (A) [step] Add the spring onions and garlic and cook gently. After two minutes, add the rice and cook over a medium heat for 2 minutes, stirring often. (B) [step] Add the soy sauce and cook until the oil changes brown. [title] Skim and deglaze the risotto balls. (C) [step] Let it simmer for 1 minute and then flip the pan over with a spatula to cook for 5 to 7 minutes. Then pour the cumin seeds into the pan. (D) [step] Stir in the seasonings and bring to boil. [title] Add the diced apples and paprika and bring to a boil.
A

[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.
A

[header] How to buy generic toner [title] Determine if there are generic toner cartridges made for your printer. [step] Manufacturers do usually offer generic toner cartridges for the latest generation of printers. If your device is older, the selection may not be quite as wide, but there is still a good chance that at least a couple of companies produce generic versions of the cartridges you need. <sep> (A) You should always try a few before coming to a " price limit " on products from a company you aren't familiar with. [substeps] You can search online to find generic toner cartridges you don't think you want. (B) [title] Make sure your printer will accept generic tone cartridges. [step] In spite of what some manufacturers would have you think, overriding protocols so a particular make and model of printer will recognize a generic toner cartridge is not always easy or possible. (C) [substeps] It's also best to check online or, if you absolutely must purchase a cartridge at all, talk to similar sellers. Run a quick search to find out more about each company, and then go directly to that page. (D) Large brands or even larger " budget " brands may have different cartridge names and options. [substeps] It is likely that you won't need these cartridges for models older than about 50 years or so.
B