2.
The answer is: D
Explanation
The correct option is D: Landlord-Tenant matter.
This is because a PIL is filed to protect the public interest, not the individual interest of the parties involved in a dispute. A landlord-tenant matter is a private dispute between two individuals and does not affect the interest of the public at large. Therefore, it will not be entertained as a PIL.
On the other hand, the other options are examples of matters that can be filed as PILs, as they involve the protection of public interest or the rights of a particular class of people.
For instance, family pension is a matter of public interest as it affects the welfare of the families of government employees who have died in service. Petitions from riot victims are also PILs as they seek justice and compensation for the victims of communal violence and human rights violations. Neglected children are another category of PILs as they aim to protect the rights and interests of children who are vulnerable to abuse, exploitation and neglect. These matters are filed in the courts to safeguard group interests and not individual interests, for which Fundamental Rights have been provided.