The correct answer is option 1: Pallavas. The Seven Pagodas of Mahabalipuram, also known as the Mamallapuram temples, are a group of ancient temples and structures located in Mahabalipuram, Tamil Nadu, India. These pagodas are a testament to the artistic and architectural skills of the Pallava dynasty, who ruled the region during the 7th and 8th centuries. The Pallavas were known for their patronage of the arts, especially in the field of sculpture and temple architecture. The Seven Pagodas are an example of their exquisite stone carvings and unique architectural style. It is important to note that the other options, Pandyas, Cholas, and Cheras, were also prominent dynasties in South India, but they were not responsible for the construction of the Seven Pagodas of Mahabalipuram.