Read the following statements about the Mauryan Empire:
I. The growth of Magadha culminated in the emergence of the Mauryan Empire.
II. Chandragupta Maurya founded the Mauryan Empire.
III. Kautilya was the successor of Chandragupta Maurya.
IV. Asoka was the son of Chandragupta Maurya.
Which of the above statements are correct?