The Populist Party was important in United States history because it proposed ideas that later became law
I believe that finding the balance of drones would be putting a limit on how many drones a country can use at one time. I'm not sure on the other 2 questions.
In hiding, I'd say first of all she missed her friends, her cat, and normal life. She also missed "riding her bike, hearing the birds sing, getting a fresh breath of air, and laughing out loud with her friends". (SOURCE: http://www.kawvalley.k12.ks.us/schools/rjh/marneyg/03_holocaust-projects/03_wright_anne%20frank.htm )
I would say this would be A..not sure though.
What war? Need to know what war or else there are thousands of answers.