11. In the_____________ , it is clearly stated that The Absolute Truth is the original reservoir of all ingredients, and this material world and its living entities are produced from those ingredients.

a) Aitareya Upanishad.
b) Katha Upanishad.
c) Taittiriya Upanishad.
d) Mandukya Upanishad.

The correct answer is
c) Taittiriya Upanishad.