How can using a narrator help a filmmaker save money? Actors require more special privileges than narrators.
Audience members will pay more to see a film with a narrator than one without.
Narrators are paid a lot less money than the actors who act out scenes on camera.
Fewer scenes will need to be acted out if some parts are just explained or summarized.

i think B or D i need to think about which one

Explanation:

invention of the washing machine

in the past, people used sticks and stones or scrub boards to clean their clothing. as it was sweaty, backbreaking work, we owe a world of to james king because he created the model for the modern washing machine in 1851. the most important issue was that this machine cleaned clothes while a person cranked the handle. doing this made people who used it develop strong muscles in their arms. later, in 1908, alva j. fisher created an electric washing machine named thor. this one was not the first automatic washing machine. however, it was one of the most popular models at the time.