You Are Looking at the Side of a Cliff with Many

Multiple Choice

You are looking at the side of a cliff with many clearly visible layers of rock.In the top layer,you find the fossil of a mouse.In the next layer down,you find the fossil of a frog.Two layers down from that,you find the fossil of a beetle and,in the deepest layer,the fossil of a millipede.This is evidence that _____________.

A) mice evolved before frogs
B) frogs evolved after mice
C) millipedes were the first among these animals to evolve
D) the beetle evolved before millipedes