The correct answer is: A) Satavahana.
Kotilingala was an important center of the Satavahana kingdom. It was located in the present-day Medak district of Telangana, India. The Satavahanas were a powerful dynasty that ruled over much of southern India from the 2nd century BCE to the 3rd century CE. Kotilingala was one of their capital cities.
The city was built on a large artificial mound. It was surrounded by a moat and a fortified wall. The city had a number of temples, palaces, and other public buildings. It was also an important center of trade and commerce.
Kotilingala was abandoned in the 3rd century CE. However, it has been excavated by archaeologists in recent years. The excavations have revealed a wealth of information about the Satavahana kingdom.
The other options are incorrect. The Kakatiyas were a dynasty that ruled over much of central and southern India from the 11th to the 14th centuries CE. The Vijayanagara Empire was a powerful Hindu kingdom that ruled over much of southern India from the 14th to the 16th centuries CE. The Chalukyas were a dynasty that ruled over much of northern and central India from the 6th to the 12th centuries CE.