public static int method(int a) a. 2. Select the header of a method that returns the sum of tho integers stored in an array a. b. public static int method(int] a) public static void method(int[] a) C. P. public static int method(int a) 3. Select the header of a method for testing whether a number is odd. public static boolean isOdd(int nl, int n2) b public static boolean isOdd(int nl) a. C. public static bool isOdd(int nl) d. public static boolean isEven(int nl) 4. Given the following array declaration. What is the value stored at index 2 in a? int [Ja (2, 1, -2, 5, 16, 9): -2 b. C. d. 16

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