Correct Answer:
C. Silk Road
Buddhism spread extensively in Central Asia primarily through the Silk Road. This ancient network of trade routes facilitated not only the exchange of goods but also cultural and religious ideas, allowing Buddhist monks and merchants to carry the teachings from India to various parts of Central Asia, China, and beyond.
- The Khyber Pass is a specific mountain pass, a component of larger routes, but not the overarching network responsible for the widespread dissemination.
- The Grand Trunk Road is a major ancient road network primarily within the Indian subcontinent.
- The Arabian Sea refers to a maritime route, which was less significant for the initial spread of Buddhism into Central Asia compared to the overland Silk Road.