Answer:wassily. Kandisky his art work is more vibrant and uses more color so is b
Explanation:
The diaphragm is the part that adjusts the light of the specimen
His speech, was about putting people back to work. Due to lack of employment cause that era was in the Great Depression.
I think you can find it here http://www.encyclopedia.com/people/history/us-history-biographies/alexander-hamilton