Let’s break down the correct matches based on the definitions of different types of migration:
Involuntary migration (P): This refers to forced displacement, typically due to conflict, disaster, or persecution. Therefore, it matches with (3) Forced displacement from their origin to destination areas.
Step migration (Q): This occurs when a migrant follows a series of stages or stops towards a final destination. Therefore, it matches with (1) When a migrant follows a path or series of stages towards a final destination.
Circular migration (R): This involves repetitive movement of a migrant worker between their home and destination areas, often for work purposes. Therefore, it matches with (2) Repetitive movement of a migrant worker between home and destination areas.
Chain migration (S): This happens when immigrants from a particular area follow others from that area to a particular destination. Therefore, it matches with (4) Immigrants from a particular area follow others from that area to a particular destination.
Conclusion: The correct matches are (P–3, Q–1, R–2, S–4), which corresponds to option (B).