Suppose that a public authority has allowed the use of a public area, on a precarious basis, to a certain citizen so that he can reside in the plac...

Suppose that a public authority has allowed the use of a public area, on a precarious basis, to a certain citizen so that he can reside in the place and also be responsible for the conservation, security, and maintenance of the area. Later, said authority was alerted that the area would be necessary for the construction of a public facility and should therefore be vacated to start the works. In this situation, what should the Administration do?


a) Annul the permission to use, which has a nature of a linked act, except if more than 5 years have passed, when it starts to generate subjective right to the individual.
b) Revoke the permission to use, in the exercise of administrative discretion, requiring only reasons of convenience and opportunity.
c) Terminate the permission to use, necessarily through the judicial route, since the Administration cannot revoke regularly practiced acts.
d) Revoke, administratively, the permission to use, only if it has some defect or illegality, such as, for example, deviation of purpose.
e) Annul the permission to use, regardless of legality defect, through the administrative route or, if more than 5 years have passed, through the judicial route.