Answer:
B. contained many Greek-speaking regions.
Explanation:
The Mauryan Empire substituted the former Magadha Kingdom to assert dominance over large parts of northern India. At its height, the empire stretched across modern Iran in the west to the Gangetic plains of India in East and covers almost the entire subcontinent. Chandragupta Maurya acquired territories from the Greek general of Alexander named Seleucus Nikator in exchange for Indian elephants. The ambassador of Seleucus Nikator, Megasthenes who lived at the court of Maurya in Pataliputra. The communication channels also imply the fact that the Mauryan kingdom was connected to the western Greek world.