The 'Big Bang Theory' is about the:

Correct option is C

The correct answer is (C) origin of the universe.

Explanation:
The Big Bang Theory explains the origin of the universe, suggesting that the universe started as a singularity and expanded over time.

Other options explanations:

• origin of the human species: Refers to the theory of evolution.
• origin of life: Refers to the abiogenesis theory.
• origin of the animal species: Refers to the evolutionary theory of species development.

Information booster:

• Big Bang Theory:
  • Proposed by Georges Lemaître in 1931.
  • Explains that the universe began from a singular point and is still expanding.
  • Supported by cosmic background radiation and redshift observations.