What best summarizes the central idea of the passage from "How the Internet and Other Technologies Came About?

Technological advancement is a side effect of military efforts to win wars.

Explanation:

While military commanders may yearn for a big technical breakthrough that would enable them to win a war or eliminate the possibility of conflict, such breakthroughs are very uncommon. Typically, it is incremental improvements to current technology that provide one side with an advantage over the other. The Roman empire, probably history's greatest military power, was fully aware of this.

to persuade readers which is answer c