The correct answer is option 3, Tripitaka. The Tripitaka, also known as the Pali Canon, is considered the sacred book of the Buddhists. It is a collection of texts that contain the teachings of the Buddha and his disciples. The Tripitaka is divided into three sections or "baskets": the Vinaya Pitaka, which focuses on monastic discipline; the Sutta Pitaka, which contains the Buddha`s discourses; and the Abhidhamma Pitaka, which deals with philosophy and psychology. The Upanishads and Vedas, mentioned in options 1 and 2, are actually sacred books of Hinduism and not Buddhism. The Jatakas, mentioned in option 4, are a collection of stories about the previous lives of the Buddha and his various virtues and moral lessons.