Q: 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".
[header] How to remove a knobset lock [title] Examine the base of your knob to determine what kind it is. [step] There are two main types of doorknobs with hidden levers. These hidden levers can be in the form of a thin slot or a pinhole. <sep> (A) [substeps] A button lever is inserted through an anvil shaped slot into a face. A screw lever is inserted through an eye pin on the front of the doorknob. (B) [substeps] If your knob contains a heavy metal panel or latch, then this is usually the base and you can use your fingernail to pry it loose. Note if there are any grips or handles on your knobs. (C) Since they are designed to be sealed, they are usually hidden from the inside of your door and can be constantly tampered with. [substeps] Numerically, just about any knob will work. (D) Determine which kind of knob you have, because each knob will detach from the door differently. [substeps] These hidden levers are also called detents.
A:
D