Difficulty: Easy
Correct Answer: Class A.
Explanation:
Introduction / Context:
This program tests dynamic dispatch vs. static binding. Member functions are not declared virtual, so calls through a base pointer use static type information, not the dynamic type of the object.
Given Data / Assumptions:
ptr has static type A*.C (via new C()).virtual.
Concept / Approach:
Without virtual, the call is statically bound to A::CuriousTabFunction because the expression type is A*. Dynamic dispatch would require virtual on the base declaration to select the most-derived override at runtime.
Step-by-Step Solution:
1) ptr becomes an A* pointing at a C object. 2) ptr->CuriousTabFunction() is compiled to call A::CuriousTabFunction due to static binding. 3) The output is “Class A”.
Verification / Alternative check:
Mark CuriousTabFunction as virtual in A and rerun; the output becomes “Class C”.
Why Other Options Are Wrong:
“Class B” or “Class C” would require virtual dispatch. There is no compile-time error since method lookup succeeds and signatures match.
Common Pitfalls:
Assuming polymorphism without declaring methods virtual; forgetting that overriding without virtual still hides but does not polymorphically override.
Final Answer:
Class A.
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