ANSWER: None of the above
Explanation:
The Puranas, eighteen in number, preserved the traditions, legends, moral codes, religious and philosophical principles and itihas. The smritis are metrical texts containing the rules and regulations and laws for the guidance and governance of society. They are based on dharmasutras and grihyasutras of Vedic literature. But additions and alterations have been done to make them suitable to the changing conditions of society. They are written in verse. The phase of writing of commentaries on the smritis -begins after the Gupta period.