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 make simple five minute frosting [title] Beat the butter in a medium-sized mixing bowl until smooth and fluffy. [step] You can use an electric mixer or a food processor. [title] Add the powdered sugar a small amount at a time. <sep> (A) [step] Use the stand mixer to mix the ingredients on medium speed until smooth and sugar dissolves. Add the vanilla, milk, and eggs. (B) [step] It will increase the strength of the frosting gradually. [title] Once 1 teaspoons of powdered sugar is added, whip the butter. (C) [step] The mixture will appear dry and crumbly at first, but it will become smoother. [title] Gradually stir in the half-and-half or milk until you have reached your desired consistency. (D) [step] The more powdered sugar the healthier the frosting is. [title] Add the vitamin e oil, and stir to combine.
[A]: C

[Q]: [header] How to avoid the stomach flu [title] Wash your hands often. [step] Wash your hands carefully with soap and water for at least 20 seconds. Always wash your hands after going to the washroom and before and after handling food and eating. <sep> (A) Washing your hands is important, since if the way you handle and eat is bad (germs, bacteria, etc. ), your best chance at preventing the flu is by keeping your hands clean. (B) Don't attempt to dry or clean your hands on something other than a business table. [title] Wear long pants (not utility pants to wear running shoes with). (C) [substeps] It's a good idea to wash your hands between-and as many times as you go to the bathroom. This will help prevent an episode of nausea in the future, as well as allow your body time to shut down its internal defenses to fight off food, germs, and viruses. (D) This will help to prevent the spread of germs. Germs on your hands can get into your eyes, ears, and nose and make you sick.
[A]: D

[Q]: [header] How to care for bleached blonde hair [title] Shampoo less frequently. [step] Shampoos are designed to remove dirt and oil from the hair, but they can also strip your hair's natural cuticle. Bleach does the same thing, so shampooing every day just layers damage. <sep> (A) It's best to start at the roots and work your way up from there. Adding more products as necessary reduces the amount of time you spend washing and moisturizing your hair and damaging it with shampoo, until your hair is no longer bleached blonde. (B) Long haired people with bleached hair may not enjoy having to wash and condition their hair once every two or three days. When possible, designate one day a week to shampoo your hair. (C) Think carefully about this before treating your hair with bleach, or you may end up causing more damage. [substeps] If you really want to keep your bleached hair as white as possible, shampoo more often. (D) [substeps] Wash your hair every three to four days, especially in the first few weeks. Buy a gentle dry shampoo to spray on your roots to stretch the time you can go between washes.
[A]:
D