The correct answer is (a). Husori is a form of Bihu where dancers perform in groups. It is a folk dance that is performed during the Bihu festival in Assam, India. The dancers wear traditional Assamese costumes and perform to the accompaniment of drums and other musical instruments. The dance is a lively and energetic performance that is enjoyed by people of all ages.
Option (b) is incorrect because Husori is not a form of Bihu where dancers visit individual homes. Husori is a public performance that is typically held in a large open space.
Option (c) is incorrect because Husori is not a form of Bihu where dancers carry musical instruments. The dancers in Husori are accompanied by a group of musicians who play drums and other instruments.
Option (d) is incorrect because Husori is not a form of Bihu where dancers use props like flowers and scarves. The dancers in Husori wear traditional Assamese costumes and do not use any props.