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". 

[EX Q]: [header] How to avoid common glass tile installation mistakes [title] Ensure color consistency behind glass tile. [substeps] Since glass can be the sole material in an installation, it is essential to choose a bonding mortar that meets its unique demands. In most cases, the color of the thin-set mortar was not an issue when installing opaque ceramic tile. <sep> (A) But with clear and translucent glass, the mortar appears through the tile: if the color varies in the mortar, it will in the glass tile too. To eliminate variations across a glass tile installation, choose a glass tile mortar with a bright white shade that is controlled to a consistent standard color. (B) [title] Find a masonry solution solution as described in this article. [step] Masonry solutions used to be sold in commercial suppliers were expensive and less durable than those containing glazed portions. (C) [title] Check your online repair and installation guide for common glass tile installation recommendations. [substeps] If you cannot find the recommended measurements, consult the manufacturer's website or consult the recommended supplies list. (D) Spray glass tile debris on the glass tile before continuing. Rinse glass tile debris with water and wipe the water away.
[EX A]: A

[EX Q]: [header] How to band a goat [title] Purchase an elastrator from a farm and ranch supply store. [step] It is a metal tool that is used to secure the rubber band around the scrotum. [title] Buy castration bands. <sep> (A) [step] They can be purchased from your local farm supply store or from a municipal livestock supply store. [title] Buy a leather or gauze band. (B) [step] Don't use household office supplies for banding. The bands should be thick enough and tight enough to lead to castration within a few weeks. (C) [step] These are simple, metal with metal screws, two prongs, and a ribbon loop on either end. [title] Cut a small hole in each long length of the band. (D) [step] It is a device that attaches the separate rubber bands, wires, tubing and pieces of cork/plastic. It is available at local farm supply stores, ranch supply stores and hardware stores.
[EX A]: B

[EX Q]: [header] How to report fraud in canada [title] Gather as much information as possible. [step] Organize and preserve any evidence you have of the fraudulent activity, including emails, receipts, screen captures, or phone records. If possible, try to print digital files, but keep the digital file on your computer or device. <sep> (A) [substeps] Make sure you thoroughly research the fraudulent activity in the or your computer and document it closely. If you find out that someone has been involved, you may need to submit a report to the canadian security administration. (B) If necessary, you may also want to distribute copies or files to all major credit reporting agencies. [substeps] Purchase or post copies of any receipts or other supporting documentation to any credit reporting agencies, such as financial statements, paid bills, or receipts from friends, family, or credit card purchases. (C) [substeps] If you can't hire a lawyer, particularly if the fraud involves financial problems, try to hire a financial advisor. Not only can this save you substantial amounts of time, but the legal cost of hiring a financial advisor can impact the fees associated with filing your report. (D) [substeps] Focus on evidence you can easily acquire yourself, such as from your own records or accounts. Don't put yourself in potential danger by provoking the fraudster or attempting to play detective.
[EX A]:
D