<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."
Knitting is a good way for students to learn basic concepts in math, but more advanced math requires equations, this is the statement which identifies the central idea of the text
As making different levels and types of fabrics expands the over all thinking ability of the individuals and make it more easy for them to go through the process of solving various mathematical problems in the mean time.