B. Pioneering research on radioactivity. She discovered Polonium and Radium, and won the 1903 Nobel Prize.
Probably C, the british came to america and indians didnt trust them so a bond had to be made, then they could trade.
Militarism, Alliances, Imperialism, Nationalism
Answer:
Sea trade was faster and less deadly
Overland trade was slow and dangerous
Explanation:
Kono Dio Da!!!
