Which of the following factors prevailed in 6th century B.C led to religious reforms in Indian subcontinent?
1. The complex rituals and sacrifices advocated in the early Vedic period
2. Upanishads seemed to be highly philosophical in nature and not easily understood to common man.
3. Trading class wanted to enhance their social status against orthodox Verna system.
Which of the statements given above is/are correct?
1. 2 only
2. 2 and 3 only
3. 1 and 3
4. 1, 2 and 3