If the user did not supply the value, what value will it take?

1.	If the user did not supply the value, what value will it take?
A.	rise an error
B.	default value
C.	both rise an error & default value
D.	All of above
E.	None of these
Answer» C. both rise an error & default value

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If the user did not supply the value, what value will it take?

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