Official Answer Key & Detailed Solution
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Correct Answer: Option (C) — Monsoon winds across the Bay of Bengal facilitated sea voyages.
Concept & Option Breakdown
Standard Reference Verified- Option (c) is correct: The predictable seasonal pattern of the southwest and northeast monsoon winds across the Bay of Bengal made open-sea navigation reliable and regular, driving early trans-oceanic trade and cultural diffusion to Southeast Asia.
- Options (a), (b), and (d) are incorrect: While Indian kingdoms had competent shipbuilding techniques and offered royal patronage, other contemporary civilizations (e.g., China and Arab sailors) also had sophisticated shipbuilding. The primary geographic-meteorological driver enabling widespread navigation was the monsoon wind system.
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