Respuesta :
Scientists examining the fossil evidence during the Precambrian time is used to identify what happened before the start of the Paleozoic era.
What is Precambrian time?
This is defined as the period of time which extends from about 4.6 billion years ago.
Due to the wide difference in time present, its fossil is used to identify what happened before the start of the Paleozoic era which is why option C was chosen.
Read more about Precambrian time here https://brainly.com/question/7579197
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