The water carrier's principal competitor for the movement of grain, coal, and ores is which mode of transportation? a. pipelines b. Canadian and foreign owned water carriers c. railroads d. motor carriers

c. railroads

Explanation:

A water carrier carries both people and goods using waterways or sea routes. One of the main competitor for the movement of grain, coal and ores that are bulk products are the railroads.The competitor exists because majority of the places where it is possible to reach by waterways are also accessible via railroads.For example, the grains can be moved from midwest to New Orleans by both means. Similarly, coal can also be transported by both ways, some of the states where coal is produced and transported by this route is West Virginia, Pennsylvania and Kentucky.