The following readings are obtained on a gas analyzer: What type of problem is most likely indicated? A. Insulation breakdown on a secondary ignition wire B. A vacuum leak resulting in a lean...

The following readings are obtained on a gas analyzer:

What type of problem is most likely indicated?

A. Insulation breakdown on a secondary ignition wire

B. A vacuum leak resulting in a lean condition at idle

C. A plugged fuel filter resulting in a lean condition at 2500 RPM

D. A plugged air filter resulting in a rich condition at 2500 RPM