Choose a correct statement about a C Switch Construct.

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A. default case is optional inside switch.

B. break; causes the control to exit the switch immediately and avoid fall down to other CASE statements.

C. You can not use duplicate CASE Constants inside a Switch construct.

D. All the above.

D. All the above.

Choose a correct statement about a C Switch Construct. , Choose a correct statement about a C Switch Construct.