John wants to show the evolutionary relationship between a lion and a cat and group them based on their similarities and a common ancestor. Which of these is the best and simplest method to represent?

The best and simplest method for John to represent the evolutionary relationship between a lion and a cat is through a phylogenetic tree. This diagram visually illustrates their common ancestor and highlights their similarities and differences based on evolutionary traits. By branching out from a common node, it effectively shows how both species are related while emphasizing their shared lineage.