Step 1: Understanding the Concept:
The history of geographical thought is marked by several paradigm shifts, moving from descriptive regional studies to quantitative analysis and finally to critical and diverse social perspectives.
Step 2: Detailed Explanation:
The correct chronological order is:
1. Regional Analysis (1930s): This period focused on identifying the unique characteristics of different regions (Areal Differentiation).
2. Spatial Organisation (Late 1950s to late 1960s): This phase involved the 'Quantitative Revolution,' where geographers used statistical models and geometry to explain spatial patterns.
3. Emergence of Humanistic, Radical and Behavioural schools (1970s): These schools emerged as a critique of the Quantitative Revolution, bringing focus back to human agency, social justice, and perception.
4. Post-modernism in Geography (1990s): This era questioned universal theories and emphasized the importance of local context and multiple perspectives.
Step 3: Final Answer:
The chronological sequence is 3 $\rightarrow$ 1 $\rightarrow$ 2 $\rightarrow$ 4. Therefore, option (A) is the correct answer.