Which of the Following Have Extended the Achievements of the Modern

Which of the following have extended the achievements of the modern synthesis and what is the result?

A) Molecular techniques have extended the achievements of the modern synthesis, allowing precise analysis of the genetic basis of evolutionary change.
B) Molecular techniques have extended the achievements of the modern synthesis, allowing precise analysis of the genetic basis of evolutionary change and the genetic relatedness of living and extinct organisms.
C) Molecular techniques have extended the achievements of the modern synthesis, allowing the genetic relatedness of living and extinct organisms.
D) Genetic techniques have extended the achievements of the modern synthesis, allowing precise analysis of the genetic relatedness of living and extinct organisms.