Answer:
I am expecting that option b is correct answer ☺️☺️
Obama makes the point that America is powerful because has the potential to constantly reinvent itself. He mentions that America has enough productivity, innovation and capacity to do so. It is also a land which protects the interests of everyone and not narrow interests anymore, and this is path that had to be followed from that moment on.
The first Global Age, also known as 'the Exploration Age', was the period between Columbus discovery of the New World (1492) and the American Revolution (1770s).<u> During this time, globalization transformed the whole world when the Commercial Revolution took place. Commercial Revolution was the European expansion of the trading business that connected and also transformed Asian, American and African nations through political, financial, cultural and economic exchanges.</u>
B <span>The Great Depression. Is the validated answer Glad to help :) </span>