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 clean a cast iron stove [title] Place an old newspaper on the ground in front of the stove. [step] Do this as a protective measure before you begin scooping ashes out of the stove, as they are liable to drop onto the ground. A newspaper will make cleanup much easier. <sep> (A) [substeps] You might even want to splash some cold water over the newspaper, so the water completely freezes around the newspaper. A drop of lemon juice can also help. (B) [title] Pour about a tablespoon of salt into the newspaper you have saved. [step] Add lemon juice and shake off the salt. (C) [title] Use the newspaper to wipe and scrape any soot out of the cast iron burner. [step] Do this several times until any soot is gone. (D) As you're spreading the newspaper, open the air dampener so that any ash stuck to it will fall into the firebox. [substeps] The air dampener will be a small knob on the front of the cast iron stove, that you should pull outward to open.
[A]: D

[Q]: [header] How to remove malware [title] Understand that viruses, trojans, worms, spyware and bots are all malware that can damage your system. [substeps] A trojan is software that may look legitimate, but tricks you into downloading it. It then activates, and can delete files and steal data or give the perpetrator access to your system. <sep> (A) An administrator is a person with whom you can password protect your database. A trojan is a type of perpetrator that can use your database, copy and resize, hack into users' databases and earn your trademark. (B) [title] Verify that your computer has a dedicated shutoff defroster. [step] In theory, you would press the power key to turn it on and off while running the software program. (C) Helix can easily catch this software, so make sure you are safe. [title] Find the error button and quickly click on it in the settings section. (D) A rootkit can be downloaded unknowingly along with other programs that you install. It can hide on your computer and can avoid normal means of detection.
[A]: D

[Q]: [header] How to measure for a laptop skin [title] Research the laptop skin that you want to purchase from the many that are available online. [step] You will want to investigate several websites before making a final choice because of the number of options that are out there. [title] Choose a website that will best suite your design needs. <sep> (A) [step] There are quite a few services that are free of charge and you are looking for a laptop that will fulfill all of those needs. One great type of website that works well with laptop skin is cooldial. (B) [step] This will determine how much measuring you will need to do before ordering the laptop skin. Most websites will ask you for the model of your laptop and will send you a precut laptop skin that will be close to the size of your computer. (C) [step] If a website is bothering you, then write a list of all the options that are available and wait to compare prices. [title] Get a laptop body that can connect to your computer via usb devices. (D) [title] Most laptops will require data about the computer, including its operating system, the size, blu-ray jack, external performance, software, available storage places, storage levels and the like. [step] Be sure to go with your design for this in order to fully embrace your laptop skin.
[A]:
B