The correct option, "2 and 4 only," refers to texts that are part of Jain literature. The Parishishta Parvan (2) is a significant work that elaborates on the lives of Tirthankaras and key Jain teachings, while the Trishashtilakshana Mahapurana (4) also focuses on recounting the lives of the 63 illustrious persons in Jain tradition, including Tirthankaras. In contrast, Nettipakarana (1) is regarded as a Buddhist text, and Avadanasataka (3) is primarily associated with Buddhist narratives and moral tales. Understanding these texts is crucial for recognizing the distinctions in religious literature, which is an important aspect of Indian cultural and historical studies, particularly in the context of the diverse philosophical traditions in ancient India.