The divisions of time in geology from largest to smallest is D. Eon, Era, Period, Epoch, Age.
An eon is the longest division and is defined as a billion years. This is then followed by an era and then by a period which is over ten million years.
Epoch then follows behind and lasts for millions of years and then an age will be the lowest with a couple of million years.
In conclusion, option D is correct.
Find out more on eons at https://brainly.com/question/18754406.