Which of the following are human process interventions that are more system$-$wide and typically focus on the total organization, entire department, as well as on relations between groups?

a$.$ Organization confrontation meeting, extra group relations, small group interventions and interpersonal goals.

b$.$ Organization confrontation meeting, typical group relations, large group interventions and culture change.

c$.$ Organization confrontation meeting, intergroup relations, large group interventions and culture change.

d$.$ Organization confrontation meeting, large group relations, small group interventions and culture change.