With reference to the earliest records of Malayalam prose, consider the following statements:

1. The majority of the early inscriptions are from the Travancore region.
2. The language of the early inscriptions shows structural similarity with the 15th-century Malayalam literary works.
3. The language of KrishnaGatha (15th century) did not show structural identity with the inscriptions of the earlier period.
4. Which of the statement/statements given above is/are correct?