What Does "Probabilistic Epigenesis" Mean

What does "probabilistic epigenesis" mean?

A) Biological, psychological, and social-cultural factors cause development to unfold over time in a manner that is not predetermined
B) Genetics influence children's biological development which, in turn, affects their psychological functioning.
C) Children's outcomes in adulthood can be traced back to early risk or protective factors in early life.
D) Genetic and biological factors play the largest role in shaping child development, but psychological and social factors can alter developmental trajectories over time.