The correct answer is: a) Mauryan Empire.
Chandragupta Maurya was the founder of the Mauryan Empire, which was one of the largest and most powerful empires in Indian history. He defeated the Greek satrapies in Punjab and incorporated the region into his empire. The Mauryan Empire was a major power in South Asia for over 100 years.
The Gupta Empire was a golden age of Indian history. It was a time of great cultural and economic prosperity. The Gupta Empire was not as powerful as the Mauryan Empire, but it was still a major power in South Asia.
The Chola Empire was a powerful empire in South India. It was founded in the 9th century and lasted for over 200 years. The Chola Empire was a major naval power and it controlled much of the Indian Ocean trade.
The Satavahana Empire was a powerful empire in South India. It was founded in the 2nd century BCE and lasted for over 400 years. The Satavahana Empire was a major power in South Asia and it was a major center of Buddhism.
In conclusion, the correct answer is: a) Mauryan Empire.