C sharp output type question

Q.  Choose the correct one.  

int[] A = { 0, 2, 4, 5, 6, 8, 9 };
    int[] B = { 1, 3, 5, 7, 8 };
  
    IEnumerable nums = A.Except(B);
  
    foreach (var n in nums)
    {
        Console.Write(n +”  “);
    }

- Published on 31 Aug 15

a. 0, 2, 4, 5, 6, 8, 9
b. 1, 3, 5, 7, 8
c. 0 2 4 6 9
d. All of the above

ANSWER: 0 2 4 6 9
 
In the above example the answer will be C because Except extension method produces the set difference of two sequences. The result is a collection where the second array's elements are subtracted from the first array.

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