Explanation:

- Laterite soils are primarily found in regions with high rainfall and high temperature. They are rich in iron and aluminum.

- Option 1: Karnataka

- Laterite soils are extensively found in Karnataka.

- The climate and geography of Karnataka support the formation of laterite soils.

- Option 2: Punjab

- Punjab largely has alluvial soils due to the rivers and fertile plains.

- Laterite soil is not predominant here.

- Option 3: Uttar Pradesh

- Uttar Pradesh mainly has alluvial soils, similar to Punjab.

- Laterite soils are not commonly found.

- Option 4: West Bengal

- West Bengal has varied soil types, including laterites, but less extensively than Karnataka.

- Laterite soils do appear, primarily in some hilly regions.