Step 1 : Understanding the Question
This matching question explores the sociology and geography of migration in India according to the 2011 Census. Migration patterns are highly gender-specific in the Indian context, with men and women moving for vastly different reasons across various spatial streams. The goal is to align each "migration stream" with the specific socio-economic factor that most frequently drives that particular movement.
Step 2 : Detailed Explanation
Rural to Urban (Male): This is the classic "pull factor" migration. Men frequently leave villages to seek livelihoods in industrial or service-based sectors in cities. Thus, Work/Employment (2) is the dominant reason. (A) matches (2).
Rural to Rural (Female): This is the largest migration stream in India. Due to the social custom where a woman moves to her husband's village after the wedding, Marriage (1) accounts for the vast majority of these moves. (B) matches (1).
Urban to Urban: People already living in one city often move to another. This is usually driven by career advancement, professional transfers, or starting new Business ventures (3). (C) matches (3).
Urban to Rural: While less common, this involves people moving back to the countryside. The most frequent cause is "return migration" after finishing a career, seeking a quieter life for Retirement or better Health (4). (D) matches (4).
Verification of Patterns: When we combine these observations, the code A-2, B-1, C-3, D-4 emerges. This pattern accurately reflects the structural reality of Indian migration data where gender and economic opportunity are the primary filters.
Step 3 : Final Answer
By pairing the migration streams with their primary census-recorded drivers, we find the sequence A-2, B-1, C-3, and D-4, which is Option A.