The railroads positively helped the nation in what significant way? a. railroads created a need for time zones, making business transactions easier
b. the emergence of railroads put canals out of business
c. railroads led to greater nativist sentiment
d. railroads were instrumental in official recognition of labor union rights

Explanation: The railroads positively helped the nation in what significant way?a.railroads created a need for time zones, making business transactions easier b.the emergence of railroads put canals out of business c.railroads led to greater nativist sentiment d.railroads were instrumental in official recognition of labor union rights

the answer to this question is the third option. hope this