Unfortunately, you forgot to include the map. Without the map, we don't have the proper information to answer your question.
However, trying to help you we did some research a found a map that can help us.
The correct answer is B) Aśoka was able to conquer the majority of the Indian subcontinent.
Based on the map, the accurate statement about the expansion of the Mauryan Empire is "Aśoka was able to conquer the majority of the Indian subcontinent."
On the map, we can see how Asoka dominion spread all through most of the Indian territory.
During the Mauryan Empire, Asoka was a feared and forceful ruler that conquered many territories and expanded the Empire. He was the son of the famous Chandragupta Maurya, known for being the founder of the Mauryan Empire in ancient Indian times.
Asoka's audacity intelligence and compassion with his subjects made people love him and was considered one of the best rulers of the empire.