Step 1: Understanding the question.
The question asks which work was composed by Bonepa Janepa, a known literary or cultural figure in Garo literature.
Step 2: Contextual background.
Bonepa Janepa is recognized for his contribution to Garo cultural and linguistic preservation through his writing. One of his most noted works is A’chik A’song, which deals with themes of Garo identity, land, and cultural pride.
Step 3: Analysis of options.
- (1) Mikjumang A’gilsak — Written by another Garo author.
- (2) Matgrik Mil’am Sepi Gitcham — Not associated with Bonepa Janepa.
- (3) Chengoni Manderang — Refers to a different traditional tale.
- (4) A’chik A’song — Correct; this is the notable work authored by Bonepa Janepa.
Step 4: Conclusion.
Hence, the correct answer is A’chik A’song, which is Bonepa Janepa’s significant contribution to Garo literature.