Which of the following statement (s) is/are correct about ancient Indian literature?

The Puranas (Sanskrit: puraṇa, "of ancient times") are Hindu religious texts that are part of the Vedas. Shastra commonly refers to a treatise or text on a specific field of knowledge. In early Vedic literature, the word referred to any precept, rule, teaching, ritual instruction or direction. The Bhagavad Gita, often referred to as the Gita, is a 700-verse Hindu scripture in Sanskrit that is part of the Hindu epic Mahabharata.