The correct answer is: a) Jammu.
A doina is a traditional form of folk song from Jammu. It is a slow, mournful song that is often used to express grief or loss. The doina is typically sung in a solo voice, accompanied by a simple instrument such as a flute or a stringed instrument.
The doina is a very important part of the culture of Jammu. It is often used to express the emotions of the people, and it is a way for people to connect with their past. The doina is also a way for people to express their love for their land and their people.
The doina is a very unique form of music. It is not found in any other part of the world. The doina is a true expression of the culture of Jammu, and it is a way for people to connect with their roots.
The other options are incorrect because they are not the origin of the doina.
Option b) Kashmir is incorrect because the doina is not a traditional form of folk song from Kashmir. The doina is a traditional form of folk song from Jammu.
Option c) Ladakh is incorrect because the doina is not a traditional form of folk song from Ladakh. The doina is a traditional form of folk song from Jammu.
Option d) Gilgit-Baltistan is incorrect because the doina is not a traditional form of folk song from Gilgit-Baltistan. The doina is a traditional form of folk song from Jammu.