The correct answer to this open question is the following.
Although there are no options attached, we can answer the following.
In the 1940s, staging in widely separated planes with deep focus became common practice in Hollywood cinema because of the influence of the films directed by Orson Welles.
Famous American movie director Orson Welles(1915-1985) caused sensation in 1938 when he broadcasted in his radio show an adaptation of the novel "The War of Worlds" on October 30. The author of that novel was H. G. Wells.
He impacted the people of New Jersey because he described an Extraterrestial invasion. It was so real that people stay in shock.
Orson Wells also directed famous films such as "Citizen Kane," his debut in Holywood in 1941.
