Answer: (A) At least one type is parameterized
Step-by-step explanation:
A template class is the type of class in which the one type are parameterized atleast in each template class. The template class mainly provide the various type of specifications so that it can generate the class based on the different types of parameters.
A template class is basically initialized by passing the template argument in the given types. In this type of class atleast one type is defined as the generic type.
Therefore, Option (A) is correct.