The correct answer is option 4: Jatakas. The Jatakas are a collection of stories that narrate the past lives of the Buddha before he reached enlightenment. These stories depict the Buddha`s moral and spiritual qualities through various characters and situations. They serve as moral tales and are used to teach important Buddhist values and principles.

Option 1, Venaya pitakas, refers to the collection of rules and regulations for monastic discipline. These texts outline the code of conduct for Buddhist monks and nuns.

Option 2, Sutta pitakas, are the discourses and teachings of the Buddha. They cover a wide range of subjects, including ethics, meditation, and philosophy, and are considered to be the most important texts in Buddhism.

Option 3, Abhidhamma pitakas, are philosophical and analytical texts that provide a detailed analysis of the mind and mental phenomena. They are considered to be a higher level of teaching, focusing on the intricate aspects of Buddhist philosophy.

While options 1, 2, and 3 are important collections of Buddhist literature, they do not specifically deal with the stories of the various births of the Buddha. Therefore, option 4, Jatakas, is the correct answer.