If You Were Looking for Gold in a Stream, Where

If you were looking for gold in a stream, where you want to start hunting?

A) Gold settles out in slower stream flows and settles in cracks of the bedrock
B) Gold settles out in faster stream flows and stays in suspension of the water
C) Gold placer deposits are most commonly found on the smooth surfaces of bedrock
D) Gold placer deposits are most commonly found on the banks of streams