The Vinaya Pitaka is one of the three "baskets" (Pitakas) in the Tripitaka (the three baskets) or Pali Canon, which is the traditional term for the Buddhist scriptures. The Vinaya Pitaka contains the rules and regulations governing the conduct of Buddhist monks (bhikkhus) and nuns (bhikkhunis) within the monastic community. It provides guidelines for their daily life, behavior, discipline, and interactions within the sangha, the community of Buddhist monastics.

The Vinaya Pitaka is an essential part of the Buddhist scriptures, as it helps maintain order and discipline within the monastic community and preserves the ethical and moral standards that are crucial in the practice of Buddhism

So,the correct option is [2].