How, according to parrillo, might personal factors like authoritarian attitudes, low self-esteem, or frustration promote the growth of prejudice?

The answer is These trends are grouped into a term known as ‘relative deprivation’, this type of prejudice leads to scapegoating by misplaced anger
By doing this, instead identigying the real problem and work their way out to eliminate it, that person will find a short-term medium to release their frustation, which eventually burried them deeper 

Correct textbook answers would be 1,3, and 5