Answer:
c) abstract class, enum d) enum, interface
Explanation:
Regarding the detection of interfaces, we can say that it is possible to extend an abstract class, but not an enumeration.
This is because an abstract class is one that serves as a model for the creation of other classes, which can be extended and serve as a resource to implement and not exactly as a method. In other words, an abstract class has a certain malleability that an enumeration does not, as it is a more fixed resource and with little elasticity of use.
