The correct answer is A. Vedas.
The Vedas are the oldest scriptures of Hinduism and are considered to be apaurusheya, or “not of human origin.” They are believed to be eternal truths that have been revealed to sages through direct perception. The Vedas are divided into four parts: the Rig Veda, the Yajur Veda, the Sama Veda, and the Atharva Veda. Each Veda is further divided into several samhitas, or collections of hymns. The Rig Veda is the oldest and most important of the Vedas. It contains over 1,000 hymns, which are addressed to various gods and goddesses. The Yajur Veda is a collection of sacrificial formulas that are used in Vedic rituals. The Sama Veda is a collection of melodies that are used in Vedic rituals. The Atharva Veda is a collection of spells and incantations.
The Brahmanas are a class of texts that are associated with the Vedas. They are commentaries on the Vedas and provide instructions on how to perform Vedic rituals. The Upanishads are a class of texts that are also associated with the Vedas. They are philosophical texts that discuss the nature of reality and the soul. The Aranyakas are a class of texts that are associated with the Vedas. They are forest texts that are meant to be studied by ascetics who live in the forest.
The Vedas are considered to be the most sacred texts of Hinduism. They are the foundation of Hindu religion and philosophy. The Vedas are also the source of many Hindu rituals and practices.