Has anyone ever came across something and just unsure how to react to it?? i know i have and i have to choose between believing someone i don't know or someone i think i know well... i just need advice cause i don't know what to do im at the point of leaving and just not believing anyone so i truthfully don't know..

In the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? 1. mammals lived before the precambrian era. 2. dinosaurs and mammals existed in the precambrian era. 3. dinosaurs evolved after precambrian organisms. 4. precambrian organisms evolved after dinosaurs. 5. precambrian organisms were the first life-forms to become fossilized, according to this sample.