Definition: 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".
Input: [header] How to snake a shower drain [title] Purchase a plumber's snake. [step] A drain or plumber's snake, also known as an auger or a drain claw, is a long, coiled metal spiral that has a graspable handle on one end. Drain snakes can either be manual (in which case you'll crank the handle yourself) or electric (which you can attach to a power drill). <sep> (A) Electric crimps, subfloor pipe assemblies and some sort of ignition wiring are popular alternatives to reverse drain locks. [title] Get a screwdriver that is appropriate for your job. (B) Operators commonly use electric nuts to control their pipes. Alternatively, a plumber will wrap a thread or a couple of picks around the handle, keeping the handle draped over the chain to secure it. (C) Clamp or clamp the cylinder under the tank from the inside out, which you screw through the backside of the crawl tank. [title] Begin by removing the slide slide using your wrench. (D) [substeps] Both manual and electric plumber's snakes should be readily available at your local hardware store or home-supply store. A snake will probably cost around $25 usd.
Output:
D