Why is the united states ranked no.1 in the list of most influential countries?

The U.S is ranked no.1 in the list of most influential countries because or the following reasons: ..

Explanation:

"The United States of America is definitely at the top of the ranking of the most influential countries in the world, leading in the world in the fields of science, sports, technology, etc. Country with economy and the  most powerful  military in the world, followed by a huge economy," the CEO noted.

the answer is "c" im pretty sure.