What will be the output of the following C# code?
static void Main(string[] args)
{
int []a = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
func(ref a);
Console.ReadLine();
}
static void func(ref int[] x)
{
Console.WriteLine(” numbers are:”);
for (int i = 0; i < x.Length; i++)
{
if (x[i] % 2 == 0)
{
x[i] = x[i] + 1;
Console.WriteLine(x[i]);
}
}
}
a) numbers are : 2 4 6 8 10
b) numbers are : 3 5 7 9 11
c) numbers are : 2 3 4 5 6
d) none of the mentioned

Answer: b
Explanation: Those numbers divisible by 2 are 2, 4, 6, 8, 10 and when condition of loop is executed it increments by 1.
i.e for x[1] = 2%2 == 0.So, x[1] = 2 + 1 = 3.
x[3] = 4%2 == 0.So, x[3] = 4 + 1 = 5 and so on.
Output :
3 5 7 9 11