Technician a Says One Advantage of a Variable Valve Timing

Technician A says one advantage of a variable valve timing system is that it allows a higher-compression engine to burn a lower octane fuel while still being able to control the potential for detonation. Technician B says that most VVT systems use engine oil pressure to control them hydraulically. Who is correct?

A) Technician A only
B) Technician B only
C) Both technicians
D) Neither technician

Correct Answer:

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