Option a is the correct answer. A. Gupta: The Gupta dynasty was a powerful empire that ruled over most of northern and central India from the 4th to the 6th century CE. They are known for their achievements in art, literature, mathematics, astronomy, and medicine. One of the famous examples of Gupta art is the Dashavatara Temple at Deogarh in Uttar Pradesh, which depicts the ten incarnations of Vishnu. B. Chandela: The Chandela dynasty was a Rajput clan that ruled over parts of central India from the 9th to the 13th century CE. They are famous for their construction of the Khajuraho temples, which are renowned for their erotic sculptures and architectural beauty. The Khajuraho temples are a UNESCO World Heritage Site and a major tourist attraction. C. Chalukya: The Chalukya dynasty was a royal family that ruled over large parts of southern and central India from the 6th to the 12th century CE. They had different branches and capitals, such as the Eastern Chalukyas of Vengi and the Western Chalukyas of Kalyani. They were known for their patronage of art, literature, and religion. One of their prominent capitals was Badami in Karnataka, where they built rock-cut caves and temples with intricate carvings and paintings. D. Pallava: The Pallava dynasty was a powerful kingdom that ruled over parts of southern India from the 3rd to the 9th century CE. They were influential in spreading Indian culture and civilization to Southeast Asia. They were also pioneers of Dravidian architecture and sculpture, especially in stone and rock-cut temples. One of their famous sites is Panamalai in Tamil Nadu, where they built the Thalagirisvara Temple dedicated to Shiva.