Sentence rearrangement (PQRS): Reorder the fragments to describe an elderly, frail woman persisting in her mission — ensuring descriptive phrases attach logically before the main clause.

Given data

• Starter: 'With her body'
• P: dragging her unwilling feet
• Q: weak and infirm
• R: doubled with age
• S: she persisted in her mission

Concept/Approach
Pile descriptive prepositional and participial phrases after 'With her body' before introducing the main clause. Order the physical condition logically: hunched with age, then general weakness, then the concrete action of dragging feet.

Step-by-step ordering
1) 'With her body doubled with age' (R)2) 'weak and infirm' (Q)3) 'dragging her unwilling feet' (P)4) 'she persisted in her mission.' (S)Final: 'With her body doubled with age, weak and infirm, dragging her unwilling feet, she persisted in her mission.'

Common pitfalls
Starting with S interrupts the descriptive build-up; placing P before R or Q weakens logical sequencing.

Final Answer
RQPS