Answer:
D. The price of crops went up because the dollar became stronger in the European markets
Explanation:
It contradicts the american ideals of freedom.
1. Fax machine
2. AT&T's picturephone
3. General Motors' autonomous car (Firebird)
Answer: B was a significant cause of world war 2
Explanation: Hitler was outraged at the lose of Germany in world war 1 and with the Treaty of Versailles that he started WW2 to end the treaty