Read the paragraph. The mighty St. Lawrence River is Canada's crucial highway to the sea. Behemoth tankers convey ore along the same route where French trappers once plied their tiny boats. Without this inland passage, Canada's growth would have been stymied. Even though Canada now has an admirable rail and highway network, the river remains the critical factor for the economic well-being of the region. Which sentence best summarizes the paragraph?
01. Canada has an excellent rail, highway, and waterway network.
02. The St. Lawrence is still being used after hundreds of years of traffic.
3. Canada would not have developed without the St. Lawrence's Influence.
04. The St. Lawrence has been, and still is, the most important transportation link in Canada.
