Answer:
Option B.
Step-by-step explanation:
The Supreme Court ruled that states cannot regulate interstate railroads, is the right answer.
The Wabash Case was a Supreme Court ruling that rigorously defined the rights of states to regulate or prevent interstate business. The lawsuit was held on 14th- 15th April 1886 and was concluded on 25th October 1886 by a majority of 6 to 3. The ruling, in this case, led to the foundation of the Interstate Commerce Commission.