The correct answer is: A. Gaur
The gaur is the state animal of Goa. It is the largest bovine in the world, and is found in the forests of India, Nepal, Bhutan, and Bangladesh. The gaur is a shy and elusive animal, and is rarely seen by humans. It is an important part of the ecosystem, and helps to keep the forests healthy.
The blackbuck is a large antelope that is found in the grasslands of India, Pakistan, and Nepal. It is a graceful and elegant animal, and is known for its speed and agility. The blackbuck is an important part of the ecosystem, and helps to keep the grasslands healthy.
The Indian elephant is the largest land mammal in Asia. It is found in the forests of India, Nepal, Bhutan, and Sri Lanka. The Indian elephant is a social animal, and lives in herds of up to 100 individuals. It is an important part of the ecosystem, and helps to keep the forests healthy.
The sangai is a type of deer that is found in the forests of Manipur, India. It is a small deer, with a long tail and distinctive antlers. The sangai is an endangered species, and is threatened by habitat loss and hunting.
The gaur is the state animal of Goa because it is a large and impressive animal that is found in the forests of Goa. It is also an important part of the ecosystem, and helps to keep the forests healthy.