Which of the below given statement(s) is/are true?

Statement I is false: abstract classes cannot be directly instantiated. You must create a concrete subclass that implements all abstract methods, then instantiate that subclass. Statement II is true: any abstract method declared in an abstract class must be overridden (implemented) in a concrete subclass, otherwise that subclass remains abstract.

Step-by-step Derivation:
Evaluate each statement:

Statement I - "An abstract class can be instantiated": FALSE

• Attempting to instantiate an abstract class directly (e.g., AbstractClass obj = new AbstractClass();) results in a compile-time error in languages like Java and C++.
• Abstract classes serve as templates and cannot exist as standalone objects.
• Only concrete (non-abstract) subclasses that implement all abstract methods can be instantiated.

Statement II - "An abstract method must be overridden": TRUE

• Abstract methods are declared with the abstract keyword and have no implementation body.
• Any class that inherits from a parent with abstract methods must override (provide implementation for) all abstract methods.
• If a subclass does not override an abstract method, it remains abstract and cannot be instantiated.
• This is enforced by the compiler/language design.

Conclusion: Statement I is false, Statement II is true → Answer is D (Only II).