Detailed explanation and options for the selected question.
Chandragupta Maurya was the first king to bring all of India under one rule, founding the Maurya Empire. Option "Ashoka" was a Mauryan emperor but inherited the empire rather than founding it. Option "Akbar" was a Mughal emperor who expanded his empire but did not unite all of India. Option "Samudragupta" was an important Mauryan ruler but did not unite the whole country.