The correct answer is: d) All of the above
Cultural organizations, educational institutions, and individual researchers and enthusiasts all play a role in documenting and preserving Mizo folk songs.
Cultural organizations such as the Mizo Cultural Association and the Mizo Music Academy are dedicated to promoting and preserving Mizo culture, including folk songs. They organize events such as music festivals and concerts, and they also publish books and articles about Mizo music.
Educational institutions such as the University of Mizoram and the Mizoram University of Science and Technology offer courses on Mizo music and culture. These courses help to raise awareness of Mizo folk songs and to train future generations of musicians and scholars.
Individual researchers and enthusiasts are also passionate about documenting and preserving Mizo folk songs. They collect recordings of songs, transcribe them into written form, and translate them into English. They also write articles and books about Mizo music, and they share their knowledge with others through workshops and lectures.
The efforts of all of these groups are essential to ensuring that Mizo folk songs are passed down to future generations.