How Does the Mechanism of Epigenetics Explain the Phenomenon of Transgenerational

How does the mechanism of epigenetics explain the phenomenon of transgenerational inheritance?

A) Events that occur during an individual's lifetime can lead to changes in genetic expression across several subsequent generations.
B) DNA mutations that occur between generations alter the DNA of subsequent generations.
C) Life events have no influence on the genetic trends that are observed in subsequent generations.
D) DNA is hardwired at birth this genetic information is passed on to subsequent generations unchanged.