<em>C- by presenting a metaphor of a dirt road being paved</em>
Explanation:
Answer from the text, "The Intelligent Planet", by Michio Kaku, "We can already catch fleeting glimpses of this powerful vision within the present Internet, which,<em> like a dirt road waiting to be paved</em> over into an information superhighway, is rapidly wiring up the computers of the world."
