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 prevent unauthorized computer access [title] Set up password protection. [substeps] Enable password protection on your computer if it is not already set up. Make sure you are using a personal password you have chosen versus the default password. <sep> (A) When creating your password, be sure to incorporate numbers or special characters to make it difficult for others to guess. Change your password often, at least every 2 months. (B) [title] Ensure no viruses are accessing the computer. [substeps] Disable password protection protected if it is locked. (C) Put some type of recovery code into the bar along the top of the screen, if it is not already enabled. Allow yourself a certain amount of time before attempting to access computer files. (D) This will prevent people from entering your password without permission. [title] Enable online browsing if there is no internet connection.
answer:
A


question:
[header] How to buy a wood burning stove [title] Consider your heating needs by evaluating the size of your home. [step] You will need to determine the heat load necessary to maintain the square footage of the area you want heated. Heat load is measured in btus, or british thermal units. <sep> (A) Inquire about btus and thermal units using online resources. [substeps] Btus heat packs can be found at home improvement stores, department stores, and some gas stations. (B) To determine how much heat you need, pay attention to the dimensions of each room you intend to fire in. [substeps] The larger the square footage, the larger your fire seats will need to be. (C) You will need 25 to 30 btus per square foot. [substeps] Measure each room to be heated with measuring tape. (D) Btus are rated from 2000-1000. Btus can be changed or altered depending on the size of your home.
answer:
C


question:
[header] How to treat liver failure in dogs [title] Be aware of how the liver repairs itself, and how this can reduce its ability to function. [step] When the liver repairs itself, it lays down scar tissue to replace damaged areas. But as more and more scar tissue is deposited within the liver, the less and less functional the liver becomes. <sep> (A) This is why eating regular meals and water at least once a day will help improve liver function. If you eat the same foods every day, the liver and aldosterone can continue to function despite fluid buildup. (B) Once there is no longer enough functional tissue left to perform essential tasks, the dog enters liver failure. [substeps] In human medicine the optimal treatment is a liver transplant, but this is not currently an option in veterinary medicine. (C) [substeps] The liver remains in hfcs, which is a reservoir of oil present in the liver. Dialysis in dogs is a type of biopsy performed by someone who uses force or you for a few hours to relieve the toxins. (D) This scar tissue acts like a hydrocol before it warms up to the condition. [substeps] Liver failure is caused by using liver alcohol.
answer:

B