Final answer:
Regardless of property rights, the river will remain polluted due to the actions and practices of individuals and industries.
Step-by-step explanation:
The statement is true: regardless of who has the property rights, the river will remain polluted. This is because pollution is not solely determined by ownership but rather by the actions and practices of individuals and industries that interact with the river.
Even if the property rights change hands, as long as those who use the river continue to pollute it, the pollution will persist. This is evident in historical examples where rivers were polluted due to industrial waste and sewage being dumped directly into them.