Correct option is C
The correct code is (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i).
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(a) Mathura Pillar Inscription of Chandragupta-II (380 CE): This inscription, also known as the Lakulisa Mathura Pillar Inscription, records the installation of two Shiva Lingas by a Shaiva ascetic named Uditacharya and mentions his lineage in the Pasupata (a major sect of Shaivism) tradition.
(b) Sanchi Inscription of Chandragupta-II (412-413 CE): This inscription records a grant of money and land by the king's commander, Amrakardava, to the Buddhist establishment at Sanchi, specifically to the Arya-sangha (Community of Monks) at the great Vihara of Kakanadabota (Sanchi).
(c) Mandasor Inscription of Kumaragupta-I (436 CE and later): This inscription (written by Vatsabhatti) primarily records the construction of a magnificent Sun temple (dedicated to the Saura cult) by a guild of silk weavers who had migrated from Lata (Gujarat) to Dasapura (Mandasor).
(d) Kahauma Inscription of Skandagupta (460-461 CE): This pillar inscription records the erection of a stone pillar and the installation of five stone images of Jaina Tirthankaras (including Adinatha, Shantinatha, and Mahavira) by a person named Madra. It is a key epigraphic source for the prevalence of Jainism during the Gupta period.