I need help with this ASAP: How do you think fear can lead people to accept policies or actions that restrict the rights of specific groups of people?

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.