Explanation:

- Rig Veda

- Correct Answer

- It is the earliest and most important of the Vedas.

- Contains hymns dedicated to various deities.

- Composed around 1500-1200 BCE.

- Sama Veda

- Derived from the rigvedic hymns.

- Primarily a collection of melodies and chants.

- Used in rituals and religious ceremonies.

- Yajur Veda

- Contains prose mantras used in ritual offerings.

- Associated with the priest who performed the rituals.

- Atharva Veda

- Composed later than Rig Veda.

- Includes hymns, spells, and incantations.

- Deals with both practical and spiritual knowledge.