Which of the following best describes the physical process that is responsible for creating flood zones shown on the map? a. Silt deposits along the major river systems create low lying areas that flood easily during spring snowmelt and seasonal rains.

b. Tectonic forces in the Indian subcontinent cause upheavals of land which changes the course of rivers over time, causing flooding.

c. India's growing population has led to the need to build huge dams along these rivers, which has led to the flooding of thousands of acres of land.

d. High tides along the coast of the Indian Ocean often meet waters flowing from inland valleys causing the build-up of excess waters in the river systems.