Life would have become increasingly diverse.
The first one is correct but the second scenario did not happen. Instead of one phylum at first and seeing a slow and steady increase of phylum, we see what seems to be seeding of phylum. (Mainly during the Cambrain period). Darwin's theoretical tree of life is not supported in the fossil record. This implies design
The facts are against you traderdrew. Have a look at this
From
Ellen Thomas – University Professor, College of Integrative Sciences and Research Professor, E&ES