Which two types of theater movements do the father and son duo follow?

when christopher started directing stage plays, he preferred n his play, which is why he never used fake props in any of his dramas. he also instructed his actors to completely ignore the audience while performing and act as if they really living the lives of their respective characters. christopher’s son, also a play director, took his father’s style of directing to another level because he promoted in his plays. he would write his plays digging deep in his characters and the motivations behind their actions. he would ensure that every minute detail is explained in the play. his plays, however, were always about the harsh realities of life.

1.realism
naturalism

2.existentialism
naturalism