It was "Mitchell Palmer" who was the attorney general under President Wilson who led a witch-hunt to round up communists in the 1920s, since these were known as the "Palmer Raids".
Out of the options listed the best suited one would be A. even though he never thought they ended. <span />
Some people find it helpful to move around while they read. Speak out loud as well, it will force your mind stay on track. Fidget some, get a fidget idem or just move some part of your bod, this especially helps when you are in school and do not have time for breaks. You can try changing positions every so often. Do not try to work all at once either, read in short burst and take a break to think about what you read. Keep distracting things out of your line of sight. It might also help to change the subject material once and a while.
I hope this is a little bit helpful :)
The Berlin Wall was used to divide Eastern Germany and Western Germany at the end of World War 2. I hope this helps :)
