Step 1: Radiant City.
- Developed by Le Corbusier in the 1930s. - Characterized by high-rise cruciform towers, strict zoning, and extensive green belts. - Noted for its focus on vertical living. \[P \Rightarrow 3\]
Step 2: Conservative Surgery.
- Proposed by Patrick Geddes, recognized as the "father of modern town planning." - Advocated for urban improvement through selective demolition and renewal, rather than large-scale clearance. \[Q \Rightarrow 4\]
Step 3: Broadacre City.
- Conceptualized by Frank Lloyd Wright. - A low-density, decentralized urban model reliant on automobiles. - Each family was intended to possess at least one acre of land. \[R \Rightarrow 5\]
Step 4: Linear City.
- Introduced by Arturo Soria y Mata in Spain (1882). - The concept involves urban development along a single major transportation route. \[S \Rightarrow 2\]
Step 5: Final matching.
Consequently, the correct sequence is: \[P-3, \; Q-4, \; R-5, \; S-2\] This corresponds to Option (B).
Final Answer: \[\boxed{\text{(B) P-3, Q-4, R-5, S-2}}\]