In which of the following texts the list of the sixteen great states (Sodasa Nahajanapadas) of ancient india occurs?

 Select the correct answer from the codes given below :

1. Arthashastra
2. Anguttara Nikaya
3. Digha Nikaya
4. Bhagavati Sutra

Codes : 

1. 1,2
2. 2,3,4
3. 1,2,3
4. 2,4