The correct answer is A. Heru Ki Kahani.
Heru Ki Kahani is a Haryanvi novel written by Yashpal. It was first published in 1950. The novel is about the life of a peasant family in Haryana. It is considered to be one of the most important novels in the Haryanvi language.
Jhaadufiri is a Haryanvi novel written by Ram Kumar. It was first published in 1960. The novel is about the life of a woman in Haryana. It is considered to be one of the most important novels in the Haryanvi language.
Dan Lula is a Haryanvi novel written by Inderjit. It was first published in 1970. The novel is about the life of a farmer in Haryana. It is considered to be one of the most important novels in the Haryanvi language.
Surahi Gaya is a Haryanvi novel written by Narendra Kumar. It was first published in 1980. The novel is about the life of a worker in Haryana. It is considered to be one of the most important novels in the Haryanvi language.
Heru Ki Kahani is considered to be the first novel of the Haryanvi language because it was the first novel to be written in the Haryanvi language and published in a book form. The other novels mentioned above were all written after Heru Ki Kahani.