Which statement best links the origin of the Himalayas with plate tectonics?

Himalayas formed by collision of Indian and Eurasian plates

Option A correctly applies plate tectonic theory. The Indian Plate moved northward and converged with the Eurasian Plate; compression between the two plates folded, uplifted, and continues to deform sedimentary layers, producing the young fold mountains of the Himalayas. This explains their great height, steep relief, earthquakes, and continuing geological activity. The other options confuse the Himalayan origin with unrelated materials or processes. Coral does not account for the entire mountain system, desert sand is not the governing geological explanation, and Deccan lava is associated mainly with volcanic formations of the Peninsular Plateau rather than the Himalayan collision belt. Therefore A is correct.

This is a Class 10 General Knowledge question. Chapter: Indian Geography. Topic: Mountains and Plateaus of India.