@Graham SC

However, if the Question Stem were a Necessary Assumption question, you would need to find what must be true for the conclusion to hold.

A NA that could work for this is something like "Some (or at least one) politicians are members of the elite."

Why? Because even one elite politician becoming corrupt could trigger revolution.

@GrahamSC 100% agree. When I did this question, I wrote this:

Begin to decline --> P become C

member of society's elite C --> Rev

***Need to connect Politicians to Society's Elite

If that assumption is bridged,

Decline --> P corrupt --> revolution

If not bridged, then no conclusions!

This will be extremely important for Sufficient Assumption and Necessary Assumption Questions.

• SA: If politicians are part of society's elite, then it is a valid inference that when politicians become corrupt, revolution will follow.