Which robber barons engaged directly in war profiteering and later became the most powerful banker in the U. S.?

Leland Stanford

Andrew Carnegie

J. P. Morgan

John D. Rockefeller

Which of the following world and national events led to a new view of people with disabilities in the us:     a.  world war i and ii veterans with disabilities returned home after the wars.b.  john f. kennedy was elected president and had a sister with a disability.c.  the civil rights and feminist movements.d.  all of the above.