Consider the following statements about the varna system as reflected in Brahmanical texts:
1. Each varna had specific duties and occupations assigned to it.
2. Shudras were allowed to perform sacrifices but not to study the Vedas.
3. Brahmanas justified varna hierarchy as a divine creation using myths like the Purusha Sukta.
4. Guilds or shrenis were part of the varna-based structure.