The correct answer is: A. Chandragupta
Chandragupta Maurya was the founder of the Mauryan Empire in India. He was a great conqueror and expanded his empire to include much of the Indian subcontinent. He was also a patron of Buddhism and appointed a Buddhist missionary to spread Buddhism in Kashmir.
Ashoka was the grandson of Chandragupta Maurya and the third Mauryan emperor. He was a great conqueror like his grandfather, but he is also known for his Buddhist reforms. He converted to Buddhism after the Kalinga War and sent Buddhist missionaries to spread the religion throughout his empire and beyond.
Bindusara was the second Mauryan emperor. He was the son of Chandragupta Maurya and the father of Ashoka. He was a powerful ruler who expanded the Mauryan Empire to include much of the Indian subcontinent.
Samprati was the grandson of Ashoka and the fourth Mauryan emperor. He was a Buddhist ruler who continued his grandfather’s Buddhist reforms. He is also known for his patronage of art and architecture.
Chandragupta Maurya was the most likely Mauryan ruler to appoint a Buddhist missionary to spread Buddhism in Kashmir. He was a patron of Buddhism and he expanded his empire to include Kashmir. He was also a great conqueror, which would have given him the resources to send a missionary to Kashmir.