The correct answer is A. Kunju and Chanchalo.
Kunju and Chanchalo is a famous song from the Chamba region of Himachal Pradesh. It is a folk song about a young man and woman who are in love. The song is sung in a beautiful and melodious tune, and the lyrics are full of love and longing.
The song is often performed at weddings and other special occasions. It is a popular song among people of all ages, and it is a great way to learn about the culture of Chamba.
The other options are not as famous as Kunju and Chanchalo. Ghoti is a song about a donkey, Baalo is a song about hair, and Haar is a song about defeat. These songs are not as well-known as Kunju and Chanchalo, and they are not as often performed at weddings and other special occasions.
Kunju and Chanchalo is a beautiful and melodious song that is full of love and longing. It is a popular song among people of all ages, and it is a great way to learn about the culture of Chamba.