Explanation:

- The Pancha Rathas are a group of five monolithic temples located in Mahabalipuram, Tamil Nadu.

- They were constructed during the reign of the Pallava dynasty, known for their patronage of architecture and arts.

- Option 2: Pallava is the correct answer. The Pallavas, led by King Narasimhavarman I, were responsible for this unique creation during the 7th century.

- Option 1: Satavahana - This dynasty ruled much earlier and was primarily centered in the Deccan region.

- Option 3: Chola - Although known for temple architecture, their main constructions came later than the Pallavas'.

- Option 4: Chera - Mainly ruled the Kerala region, with no definitive structures linked to Mahabalipuram.

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