Which of the following function declaration is/are incorrect?

1.	Which of the following function declaration is/are incorrect?
A.	<i class="cpp-code">int Sum(int a, int b = 2, int c = 3);</i>
B.	<i class="cpp-code">int Sum(int a = 5, int b);</i>
C.	<i class="cpp-code">int Sum(int a = 0, int b, int c = 3);</i>
D.	Both B and C are incorrect.
E.	All are correct.
Answer» E. All are correct.

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Which of the following function declaration is/are incorrect?

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