Respuesta :
The Hadean era was before rocks were formed so I’d say b) . Hope this helps :)
The Hadean was a time in Earth history when stable continental interiors, termed cratons, first formed
What is Hadean?
The Hadean time is the time when the earth begins to gain formation it started about 4.6 billion years ago.
This is the time when rocks and mountains where formed as well as the solar system.
Therefore, The Hadean was a time in Earth history when stable continental interiors, termed cratons, first formed.
Learn more on Hadean here,
https://brainly.com/question/1758041
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