Which of the following statements are correct about the 'ganas' or 'sanghas' of ancient India:

A. They had no single hereditary monarch
B. They were exactly similar to modern democracies
C. A permanent standing army was their greatest asset
D. The procedures of Buddhist monastic organization imbibed the 'ganas'
E. In Licchavi there were 7,707 kings

Choose the correct answer from the options given below: