Efforts to preserve and promote the Mizo language include:

The correct answer is: All of the above.

Efforts to preserve and promote the Mizo language include:

• Language education in schools. This includes teaching Mizo as a subject in schools, as well as providing opportunities for students to learn the language through immersion programs or extracurricular activities.
• Publication of dictionaries and grammar books. This helps to ensure that there are resources available for people who want to learn or use the language.
• Documentation of oral traditions. This includes recording and preserving stories, songs, and other forms of oral literature that are passed down from generation to generation.

These efforts are important because they help to ensure that the Mizo language is passed on to future generations and that it continues to be used in all aspects of life.