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: [header] How to get rid of migraines [title] Learn all you can about migraines. [step] Nobody knows exactly what causes migraines. A lot of research has gone into the exact cause of migraines, but with little success. <sep> (A) People who experience migraines regularly have been having regular consultations with doctors and they still don't know what is causing them. Anything you experience requires some much-needed research or hypnosis to rule out any medical issues or underlying conditions. (B) Migraines result from a lack of sensory focal points or groups. They occur in fewer than three brain groups. (C) Just finding out what causes them will give you some tips on dealing with them. [substeps] Most people develop migraines because they have no symptoms or aren't able to respond to stimuli. (D) It is generally agreed upon that the trigeminal nerve plays a role in migraine pain. The trigeminal nerve is a cranial nerve that facilitates a major pain pathway.

A: D
****
Q: [header] How to make a home safe for toddlers [title] Use cabinet and drawer child latches to keep little hands out of poison and sharp items. [step] Keep heavy items locked away or well out of their reach. If oven doors are not lockable, buy a latch to keep them shut unless you want to watch your child at all times when baking. <sep> (A) [title] Use childproof latches for household repairs. [step] They can be safely locked, or were given, because they' stay safe' at the end of a hallway or adjoining small room. (B) [title] If you can, leave some items accessible to toddlers that are safe. [step] They can bang on pans or sort your plastic storage containers while you cook or clean. (C) [title] Refrain from leaving your baby inside for long periods of time. [step] Children with small hands and easily handled hands can become allergic and can even choke on poisonous foods and vegetables. (D) Lids are very fragile and we should avoid turning them on or checking the lock. [title] Use holes big enough to allow ventilation, light from the oven, and a childproof bulb for the door.

A: B
****
Q: [header] How to clean burners on a stove [title] Remove the burners. [step] Before cleaning, remove the burners from your gas or electric stove top. Be sure that the stove is off and that the elements are completely cooled down before taking off the burner grates or coils. <sep> (A) [substeps] This is especially important with brass and stainless steel stoves as well. [title] Wipe off the burners with a paper towel after cleaning. (B) Place them aside on a counter top to be cleaned. [substeps] Most burners come off easily, but others may require a gentle twist or squeeze to be removed. (C) [substeps] Don't let the burners sit outside the burner for several hours, since they will expand as they cool off. Try to keep them relatively cool so that they don't get too hot to handle. (D) Check the bottom and sides of the burner for any oils and grease. [substeps] If the burner's heat rating is less than 1200 f (30.

A:
B
****