Answer:
C. The universe coalesced into one solar system after the Big Bang.
Explanation:
This is true because, since she is writing about Big Bang theory, she would have to include how the universe was able to expand to one solar system made up of different planetary bodies. This explanation would help someone reading her writeup to understand what the Big Bang theory is all about.
A. Scientific ideas are changed when better ones are found.
Answer:
True, if it is hard enough......
Explanation:
A nebula is an interstellar cloud of "Dust and Gas"
