A. the complex number of A.Upanishad)
B. Rigveda
C. Vedas at night
D. Samadaveda
E. Avina Veda
Look at the answers and analyze what the correct answer is.
Rigveda and Avina Veda are collections of ancient poems, so they are the most important, oldest and most valuable in literature. See teaching material P305.
Knowledge points of this topic: an overview of ancient oriental literature,