Which is true of a finish$-$to$-$finish dependency? a$.$ It is a dependency in which the $$from$$ activity cannot start until the $$to$$ activity or successor is started. b$.$ It is a dependency in which in which the $$from$$ activity must finish before the $$to$$ activity or successor can start. c$.$ It is a dependency in which the $$from$$ activity must be finished before the $$to$$ activity can be finished. d$.$ It is a dependency in which the $$from$$ activity must start before the $$to$$ activity can be finished.