Answer:
All of the above traits combined.
Explanation:
Systematists may be defined as the field of biology that helps in the study of the diversification of the living organisms. The evolutionary relationship is studied in the form of evolutionary tree.
The different traits are used to study the phylogenetic relationship of the organisms. The organisms can be classified on the basis of the similarities and differences on the morphological traits, biochemical traits, molecular traits and behavioral traits.
Thus, the correct answer is option (5).
