The inertia of the rotating parts of the clutch should be

In an automobile engine, the inertia of the rotating parts of the clutch should be kept to a minimum.

Minimum inertia helps in reducing the overall moment of inertia of the rotating assembly.

This is important because lower inertia allows for quicker acceleration and deceleration of the engine.

High inertia in rotating parts can lead to sluggish response and increased wear on the clutch components.

Zero inertia is not practically possible for physical components.

"None of the above" is not a suitable answer in this context.