Final answer:
The railroad may exercise its right of eminent domain to acquire specific land when the owner objects.
Step-by-step explanation:
When a railroad needs specific land and the owner objects, the railroad may exercise its right of eminent domain. Eminent domain is a legal concept that allows the government, or in this case, the railroad, to take private property for public use. The railroad would have to compensate the landowner for the land taken, but they have the legal authority to acquire the necessary land for their operations.