This phylogenic tree is composed based on molecular data (rRNA). What statements can we infer are true about the organisms throughout the tree?

options:
Because the tree is rooted, all branches share a common ancestor.
All organisms have some sort of cellular structure/organization.
All Eukaryotes evolved from Bacteria.
Since the organisms contain RNA, they share the same DNA.
If the organisms contain RNA, the share the same four nitrogen bases.