Televised speeches political commercials interviews and photo opportunities are used by candidates for public office to do what?

What would lead a historian to consider two events to have a relationship of correlation rather than causation?

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.

Nationalist movements in the ottoman empire resulted in