The correct option is 1 and 3 only, as these pairs accurately reflect the cultural and religious nuances in ancient Indian society. The term 'Parivrajaka' refers to ascetic wanderers committed to a life of renunciation, embodying the ideals of spiritual exploration prevalent in Hinduism and Buddhism. 'Upasaka' denotes a lay follower of Buddhism, indicating the role of non-monastic individuals who support and practice the teachings of the Buddha without fully renouncing worldly life. In contrast, 'Shramana' is associated with ascetic tradition broadly, not specifically a high-status priest; thus, pair 2 is incorrectly matched. This discernment underscores the diversity of spiritual practices and social roles within Indian religious history, a key focus area in UPSC preparation.