Overloading of functions is a feature in programming languages that allows multiple functions with the same name but different parameters to be defined. It is a form of ad-hoc polymorphism, where a function can have different implementations depending on the types or number of arguments passed to it.


Ad-hoc polymorphism, also known as function overloading, is a type of polymorphism where a function can be defined with the same name but different parameters. This allows the same function name to be used for different purposes, depending on the arguments passed to it. Ad-hoc polymorphism is a key feature of many programming languages and is used to improve code readability and reusability.


Virtual polymorphism, also known as dynamic polymorphism, is a feature that allows a function to be overridden in a derived class. It is achieved through the use of virtual functions and allows the correct function to be called at runtime based on the actual type of the object. Virtual polymorphism is commonly used in object-oriented programming to achieve runtime polymorphism.


Transient polymorphism is not a recognized term in the context of programming languages. It is possible that the term was used incorrectly or is not commonly used in the field.


Pseudo polymorphism is also not a recognized term in the context of programming languages. It is possible that the term was used incorrectly or is not commonly used in the field.


In summary, the correct answer to the question is option 'C', which is ad-hoc polymorphism. Ad-hoc polymorphism, or function overloading, allows multiple functions with the same name but different parameters to be defined, improving code readability and reusability. Virtual polymorphism and transient polymorphism are not related to the concept of function overloading, and pseudo polymorphism is not a recognized term in programming languages.