Only one object can be created from an abstract class.
[B].
By default methods are virtual.
[C].
If a derived class does not provide its own version of virtual method then the one in the base class is used.
[D].
If the method in the derived class is not preceded by override keywords, the compiler will issue a warning and the method will behave as if the override keyword were present.
[E].
Each derived class does not have its own version of a virtual method.
Answer: Option C
Explanation:
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