In which text the four Ashramas have been mentioned for the first time?

Which one among the following is the earliest text?

The 13th Century text Lekhapaddhati gives us information on which one of the following topics?

Which one of the following books of ancient India has the love story of the son of the founder of Sunga dynasty?

Which one of the following is written in both prose and poetry?

Which one of the following is not the work of Ashvaghosha?