Correct Option: A

The Kushan king Kanishka, who reigned from at least 127 AD, moved the capital from Pushkalavati (now called Charsadda in the Peshawar valley) to Purushapura (Peshawar) in the 2nd century AD. Following this move by the Kushans, Peshawar became a great center of Buddhist learning even though Zoroastrianism, Hindusim and animism seem to have survived in the majority population.