Which of the following statements is/are correct about Buddhist texts?
1. The Buddha’s teachings were included in the Abhidhamma Pitaka.
2. The Vinaya Pitaka included rules and regulations for those who joined the sangha or monastic order.
3. The Sutta Pitaka dealt with philosophical matters.
1. 1 only
2. 1 and 2 only
3. 2 only
4. 1 and 3 only