Answer: All are correct
Notes: The correct answer is "All are correct." - Chandra Gupta Maurya was indeed associated with Megasthenes, who was a Greek ambassador to his court. - Bindusara, Chandra Gupta's son, was linked to Deimakos, another Greek ambassador. - Harshavardhana, a later ruler, was visited by Hiuen Tsang (Xuanzang), a Chinese monk and traveler. Thus, all pairs are accurately matched with their respective historical figures.
