Option c is the correct answer. Gandhara art flourished during the Kushan period, blending Greek and Indian influences. It produced Buddha images and reliefs, with a focus on Mahayana Buddhism. Prominent sites like Taxila and Bamiyan displayed this art, which thrived in present-day Afghanistan and North-Western India from 1st century BCE to 4th century CE. The Junagarh Rock inscription, attributed to Rudradaman I, is an ancient inscription found in Junagarh, Gujarat. It records Rudradaman's achievements, patronage, and his military success, including his restoration of sudharsan dam and his victory over the Satavahanas. The Milindapanha is a Buddhist text composed in Pali, featuring a dialogue between King Menander (Milinda) and Nagasena, a Buddhist monk. It explores various philosophical and ethical topics, blending Buddhism and Hellenistic thought. The Taxila copper-plate, also called the Moga inscription or the Patika copper-plate is a notable archaeological artifact found in the area of Taxila, Gandhara, in modern Pakistan. Written in Kharosthi script, it records Indo-Scythian ruler Patika Kusulaka's dedication of a Buddha relic to a monastery, showing their practice of Buddhism. Mention of Patika Kusulaka also appears in the Mathura lion capital inscription.