The correct answer is: a) Coastal Tamil Nadu.
The Chera kingdom was an ancient Indian kingdom that existed from the 3rd century BCE to the 12th century CE. It was located in the coastal region of Tamil Nadu, in the southern part of India. The Chera kingdom was one of the three major kingdoms of the Tamilakam region, along with the Chola and Pandya kingdoms.
The Chera kingdom was a powerful and prosperous kingdom. It was known for its trade and agriculture. The Chera kings were patrons of art and literature. The Chera kingdom was also a major center of Hinduism.
The Chera kingdom declined in the 12th century CE. It was conquered by the Chola kingdom.
Here is a brief explanation of each option:
- Option a: Coastal Tamil Nadu. This is the correct answer. The Chera kingdom was located in the coastal region of Tamil Nadu.
- Option b: Eastern Tamil Nadu. This is not the correct answer. The Chera kingdom was not located in eastern Tamil Nadu.
- Option c: Central Kerala. This is not the correct answer. The Chera kingdom was not located in central Kerala.
- Option d: Southern Andhra Pradesh. This is not the correct answer. The Chera kingdom was not located in southern Andhra Pradesh.