Answer:
A public service is a service intended to serve all members of a community. Public services include services provided by a government to people living within its jurisdiction, either directly through public sector agencies or by financing provision of services by private businesses or voluntary organizations.
I think that it was a siege
A. A was deposited most recently in the diagram above, as it is located in the top, showing that is the newest layer to be added.
I would say it’s the second option