Option c is the correct answer. The Junagarh Rock Inscription of Rudradaman is the inscription that provides evidence of Chandragupta's sway over western India. It lauds Rudradaman's achievements but indirectly reveals Chandragupta's extensive Mauryan Empire, encompassing Anarta, Surashtra, Maru, Kachchha, and Sindhu-Sauvira. The inscription acknowledges Chandragupta's administrative legacy through water management and welfare practices. It implies Rudradaman's reliance on Chandragupta's foundation. The mention of Chandragupta's reign in Rudradaman's context highlights Mauryan lineage's influence. The inscription also underscores these territories' geopolitical importance, validating historical accounts of Chandragupta's rule and its enduring impact on later rulers. Important Tips Kalinga Rock Inscription: The Kalinga Rock Edict, Ashoka's major inscription, recounts his remorse after the Kalinga war (262-261 BC), voicing sorrow for lives lost. He advocates Dhamma's influence among Greeks and forest tribes. Notably, he identifies victories over Greek rulers such as Antiochus II, Ptolemy III, and others, plus triumphs in South India and Ceylon. Written in Greek as well, it emphasizes ethical principles. Girnar Rock Inscription of Ashoka: The Girnar Rock Inscription, spanning 20 lines, details Sudarshana Lake's restoration under Chandragupta Maurya's rule, managed by successive rulers including Rudradaman I. It highlights ancient water management practices and mentions territories of Rudradaman I, including Malwa, Gujarat, and Sindh. The Sanskrit inscription also notes Junagadh's historical names and references a Yavana ruler's conduit work during Ashoka's reign. Skandagupta's contribution to Gupta Empire restoration and temple construction is also mentioned, underscoring historical record-keeping practices.