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 center the jets on su carburetors [title] Loosen the 13/16 " locking nut on the bottom of the jet assembly with a deep well spark plug socket wrench. [title] Get out your 5/8 " socket and unscrew the mixture nut just below it. [title] Pull out the jet and remove the mixture tension spring. <sep> (A) [title] Unscrew the cable connector that attaches the pressure plate and the release release spring. [title] Remove the top of the jet assembly and remove the screws at the upper end (e.g. (B) [title] Open the " cover " on the top of the jet assembly with the hand wrench and remove the 1/8 " linking wire that it came in to. [title] Unscrew the lower three " locking " nuts which will come in various sizes. (C) [title] Replace the mixture nut and the jet. [step] Screw the nut up as far as it will go and push up the jet as far as it will go. (D) [title] Remove the radioactive dust and debris from the jet. [step] This buildup of debris and trapped gas can obstruct air flow as it moves along the jet.
A:
C