The answer ion know what you speaking
In my opinion, the speaker heard the ghost.
Answer: The Sun and the planets formed together, 4.6 billion years ago, from a cloud of gas and dust called the solar nebula. A shock wave from a nearby supernova explosion probably initiated the collapse of the solar nebula. The Sun formed in the center, and the planets formed in a thin disk orbiting around it.
Explanation: how were the planets in the solar system formed?
The answer is C, they show info about years in the past, present and future, ask your teacher or any website and they can show you a line graph. :)