To answer this question, you need to understand how interfaces work in programming.
In most programming languages, an interface is a contract that defines a set of methods that a class must implement. These methods can be accessed by other classes that use the interface. However, an interface itself cannot be instantiated, meaning you cannot create an object of an interface type.
In the context of private interfaces, it is important to note that the concept of private interfaces may vary depending on the programming language. Some languages may not support private interfaces at all, while others may have different mechanisms to achieve the desired level of privacy.
Now let's go through each option to understand why it is correct or incorrect:
Option A) Using Inherits Keyword - This option is incorrect because the "inherits" keyword is typically used for class inheritance, not for implementing interfaces.
Option B) Private interfaces cannot be implemented - This option is correct because in many programming languages, interfaces are meant to be public contracts that define the methods a class must implement. The concept of private interfaces, where only certain classes can implement them, is not supported in many languages.
Option C) Using Implements Keyword - This option is incorrect because the "implements" keyword is typically used to indicate that a class is implementing an interface. However, the concept of private interfaces, where only certain classes can implement them, is not supported in many languages.
Therefore, the correct answer is B) Private interfaces cannot be implemented. This option is correct because in many programming languages, interfaces are meant to be public contracts and cannot be made private.