Sentence rearrangement (PQRS) — Craft a civics/constitution-style statement on national unity and political power: arrange R, S, P, Q after the starter 'The national unity of a free people' to produce a precise, logical sentence.

Given data

• Starter: 'The national unity of a free people'
• R: depends upon a sufficiently even balance of political power
• S: against a revolutionary opposition that is irreconcilably opposed to it
• P: to make it impracticable
• Q: for there to be an arbitrary administration

Concept/Approach
State the main predicate (R), then a prepositional phrase of contrast/guard (S), followed by an infinitive of purpose (P), and finally a complement clause (Q) explaining what is made impracticable.

Step-by-step reconstruction
1) R → predicate of dependence.2) S → sets the opposing force to be resisted.3) P → purpose 'to make it impracticable'.4) Q → 'for there to be an arbitrary administration' clarifies 'it'.Sequence: RSPQ.

Verification
Full sentence: 'The national unity of a free people depends upon a sufficiently even balance of political power against a revolutionary opposition that is irreconcilably opposed to it, to make it impracticable for there to be an arbitrary administration.'

Common pitfalls
Beginning with Q or P leads to fragments lacking a clear subject-predicate frame.

Final Answer
Correct order: RSPQ.