What did the water transportation producers focus on when trying to specialize in their industry? creating faster waterways
creating larger, more efficient vessels
creating tourist ships with more capacity
creating smaller, quicker oil barges

late but it's B

Explanation:

creating larger, more efficient vessels

b

Explanation:

is there a answer choice?

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations.