The emperor who built rest houses, wells, and roads to improve the lives of his people was Asoka. Option A is correct.
Asoka was an Indian emperor of the Maurya Dynasty, who ruled almost all of the Indian subcontinent from c. 268 to 232 BCE.The grandson of the founder of the Maurya Dynasty, Chandragupta Maurya, Ashoka drove the spread of Buddhism,
Ashoka expanded Chandragupta's empire to reign over a realm stretching from present-day Afghanistan in the west to Bangladesh in the east.