Question

When did the Silurian period occur?

A) before the Neogene era.
B) during the Hadean eon.
C) during the Mesozoic era.
D) after the Permian era.

PLEASE HELP!!
I know the letter D is wrong.

Answer 1

I believe the correct answer is A) Silurian period occurred before the Neogene era, because the other answer are wrong.
Hadean eon ended before Silurian period.
Mesozoic and Permian era were after Silurian period.