The correct answer is: d) Hotter and drier.
The interior regions of Tamil Nadu are hotter and drier than the coastal regions. This is because the interior regions are further away from the moderating influence of the ocean. The ocean absorbs heat from the sun and releases it slowly, which helps to keep the coastal regions cooler. The interior regions, on the other hand, are not cooled by the ocean, and so they experience higher temperatures.
In addition, the interior regions of Tamil Nadu are also drier than the coastal regions. This is because the interior regions are located in a rain shadow. A rain shadow is an area that receives less rainfall than the surrounding areas. This is because the mountains in the interior regions block the moisture-laden air from the ocean, which prevents it from reaching the interior regions.
As a result of the higher temperatures and lower rainfall, the interior regions of Tamil Nadu are more prone to droughts than the coastal regions.