what is one thing john f kennedy, malcom x, martin luther king jr, and robert f kennedy all had in common, and what does it suggest about the 1960s

It can be inferred that the dramatic increase in defense spending by germany was the result of. (a) attempts by great britain to take german colonies. ( b) fear of a two-front war against france and russia (c) the need to put down a communist rebellion (d) a competition with the allies to produce atomic weapons