The correct answer is: A. Tiracol Fort
Tiracol Fort is the oldest fort in Goa, India. It was built in the 14th century by the Vijayanagara Empire. The fort is located on a hill overlooking the Tiracol River and the Arabian Sea. It is a well-preserved fort and is open to the public.
Reis Magos Fort is a 16th-century Portuguese fort located in the village of Reis Magos, Goa, India. It was built by the Portuguese in 1554 to protect the northern border of their territory in Goa. The fort is a well-preserved example of Portuguese military architecture and is open to the public.
Fort Aguada is a 16th-century Portuguese fort located on the western coast of Goa, India. It was built by the Portuguese in 1540 to protect the entrance to the Mandovi River and the city of Goa. The fort is a well-preserved example of Portuguese military architecture and is open to the public.
None of these is the correct answer.