What Would the Universe Be Like If There Were Complete

Multiple Choice

What would the universe be like if there were complete symmetry between matter and antimatter?

A) It would look similar to our universe,but half of it would be composed of antimatter.
B) We would observe two universes,one an antimatter reflection of the other.
C) There would be no universe,because all of the matter and antimatter would have been annihilated.
D) There would be a universe,but it would be completely composed of energy.