The correct answer is: a) Folk dance.
Folk dance is a traditional form of dance that is passed down from generation to generation. It is often performed at festivals and other special occasions. Folk dances can be very different from one culture to another, but they often share some common features, such as simple steps and repetitive movements.
War dances are a type of folk dance that is performed before or during a battle. They are often used to intimidate the enemy and to boost the morale of the warriors. War dances can be very violent and aggressive, and they often involve the use of weapons.
Classical dance is a type of dance that is based on a set of rules and traditions. It is often performed in theaters and other formal settings. Classical dances can be very complex and difficult to learn, and they often require years of training.
Spiritual dances are a type of folk dance that is performed to express religious or spiritual beliefs. They often involve the use of symbols and rituals, and they can be very emotional and powerful.
In the case of the Naga people, their traditional form of music and dance is known as folk dance. Naga folk dances are often performed at festivals and other special occasions. They are a way for the Naga people to express their culture and heritage.