The answer to this would be A, because they began to spread westward once they decided to head away from the Arctic.
Another user made this same post, here's the link to view their answer!
brainly.com/question/3985037
Copy and paste in into your browser's search bar! :)
There's a calculator in this planet earth just use that. It's easy
Answer:
An eon
Explanation:
The first broad division of the geologic timescale is the eon. Others are Eras, Periods and Epoch.
Eons are the most broad and the largest of divisions of the timescale. There are two categories of the eons which are:
- Hadean eon
- Archean eon
- Proterozoic eon
- Phanerozoic eon
The Phanerozoic eon is the most recent. The Hadean eon is the is the oldest eon.
