The study of the connection between two species for the co-relation is called phylogenetic.
The correct answer to the question is chimpanzees.
The most common ancestor of a human being is the chimpanzee as the human evolves from it and has most of the features related to the chimpanzee.
For example - the chromosome number 3 & 6 of chimpanzee and human is the same.
For more information about the phylogenetic, refer to the link:-
https://brainly.com/question/12985618