Answer:
Studying identical twins who had been reared apart will most clearly highlight the importance of genetic predisposition in personality development
Step-by-step explanation:
According to the concept of epigenetic, which try to connect the lifestyle, environment and genetic expression in an organism, the separation of the identical twins will lead to geographical separation. The various factors that are experienced in each location differs from the other, including parental upbringing, therefore, there are some of the genetic expression that will be shut off in one of the twin pair, which it will be shown in the other. This study therefore will enable scientist to understand which particular genetic component is most easily affected by some predisposed geographical factors, which consequentially affect the personality development of the twins.