Hello there!
Your answer would be D). the economies of the nations of the world are closely linked
The idea of "globalization" is another world for global, meaning the whole world. Globalization has helped out the different nations in the world to be independent and peaceful. The whole world under globalization will be "linked" together, or connected. The idea of globalization was to get all of the nations around the world linked. This "linking" could be helpful among nations by trading. Since the nations are closely linked because of globalization, it far off easier to trade. In other words, globalization has helped nations financially. This idea of globalization would be known as a phenomenon now. This changed the way nations reacted and communicated with other nations, from economical, to industrial, and financially.
