The spontaneous creation or variation on an established theme within an artistic work is known as jazz. Jazz is a very popular musical style that is beloved by many people around the globe.
Answer:
Ok
Explanation:
The text suggests that the cause behind the continued expansion of education in the early twentieth century is the efforts of the Progressive Movement that demanded reforms to the education system. This allowed the growth of educational institutions and the number of children that attended school in the United States.
