The correct answer is A. Chital.
The Chital is a deer species found in the Indian subcontinent. It is the state animal of Goa. Chital are known for their distinctive white spots on a reddish-brown coat. They are herbivores and their diet consists of grasses, leaves, fruits, and flowers. Chital are social animals and live in herds of up to 50 individuals. They are an important part of the ecosystem and play a role in seed dispersal and grazing.
Gaur, Oxen, and Gayal are all bovine species. Gaur are the largest wild cattle in the world and can weigh up to 1,500 pounds. Oxen are domesticated cattle that are used for draft power and milk production. Gayal are a type of wild ox that is found in Southeast Asia.
None of these animals are the state animal of Goa.