Which of the following is not an essential element of public nuisance?
Public Nuisance can only be subject to one action, otherwise a party might be ruined by a million suits.
Public Nuisance is not a tort and thus does not give rise to civil action.
The defendant muct be presumed to have knowledge of the existence of the nuisance, that he failed to take reasonable steps to bring it to an end although he had ample time to do so.
There must be unreasonable and unlawful interference.
Presence of unreasonable and unlawful interference is an essential element of private law. Hence the correct option is d.