Henry Ford made many important contributions to the auto industry. Which of the following was not one of his innovations?
A.
He invented the automobile.
B.
He introduced the five-day work week.
C.
He guaranteed most of his workers a salary of five dollars a day.
D.
He established assembly lines to make cars quickly and cheaply.
A.
He invented the automobile.
B.
He introduced the five-day work week.
C.
He guaranteed most of his workers a salary of five dollars a day.
D.
He established assembly lines to make cars quickly and cheaply.