What is the process of adding amendments to the u. s. constitution meant to do

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.

Which of these constitutional amendments made all people born or naturalized in the united states into citizens of the united states ?

Why is it important that dr. luther king jr. use non-violent protest to create social change?