The correct answer is: a) More rainfall than Rayalaseema.
Coastal Andhra Pradesh receives more rainfall than Rayalaseema because of the Eastern Ghats. The Eastern Ghats are a mountain range that runs along the eastern coast of India. They block the moisture-laden winds from the Bay of Bengal, causing them to dump their rain on the coastal plain. Rayalaseema, on the other hand, is located in the interior of Andhra Pradesh and is not affected by the Eastern Ghats. As a result, it receives less rainfall than Coastal Andhra Pradesh.
Option b) is incorrect because Rayalaseema receives less rainfall than Coastal Andhra Pradesh.
Option c) is incorrect because Coastal Andhra Pradesh does not receive uniform rainfall throughout the year. The rainfall is heaviest during the monsoon season, which runs from June to September.
Option d) is incorrect because Coastal Andhra Pradesh does receive rainfall.