Which of These Phylogenetic Trees Best Demonstrates Cladogenesis?

Question

Which of these phylogenetic trees best demonstrates cladogenesis? 
A)Tree 1 
B)Tree 2 
C)Tree 3 
D)Both Tree 2 and Tree 3 
E)Both Tree 1 and Tree 2

Accepted Answer

Both Tree 2 and Tree 3 demonstrate cladogenesis, as they show branching and divergence into two or more distinct lineages. Tree 1, on the other hand, demonstrates anagenesis, as it shows a single lineage evolving and changing over time without branching.