Which of the Following Statements Is LEAST-Likely True

Multiple Choice

Which of the following statements is LEAST-Likely true?

A) Servicing valve guides before seat refinishing will result in an off-center valve seat that must be reground or cut.
B) Exhaust seats are wider than intake seats because valve cooling is critical.
C) A valve that is off-center will leak, causing the engine to idle rough when cold.
D) Valve guides must be refinished before attempting to refinish valve seats.