What Is the Significance of the Karisoke Gorilla Personality Research

What is the significance of the Karisoke gorilla personality research?

A) Insights about the evolution of personality traits can be gleaned by comparing the personality of humans with those of our closest, non-human relatives.
B) The study of great apes holds the promise of learning how assorted variables (such as differences in ecology, social systems, and life history) may act to shape personality.
C) both insights about the evolution of personality traits can be gleaned by comparing the personality of humans with those of our closest, non-human relatives and the study of great apes holds the promise of learning how assorted variables (such as differences in ecology, social systems, and life history) may act to shape personality.
D) None of these