With reference to the ancient history of India, consider the following statements:
1. Ashoka patronised the shraman tradition in the third century BCE.
2. Worship of Yakshas and mother-goddess was not in vogue during the Mauryan period.
3. Mauryan pillars are very similar to the Achaemenian pillars.
Which of the statements given above are NOT correct?
1. 1 and 2 only
2. 1 and 3 only
3. 2 and 3 only
4. 2 only