Which method does following C# code explains?

static void Main(string[] args)
{
    int a = 10, b = 20;
    method(ref a,  ref b);
    console.writeline(a + "  " + b);
}
static void swap(ref int i,  ref int j)
{  
    int t;
    t = i;
    i = j;
    j = t;
}

What is the correct way to declare a string array in C#?

A. string[] colors;

B. array colors;

C. string colors[];

D. colors[] = string;

How do you access the first element of an array named 'numbers' in C#?

A. first(numbers);

B. numbers.first;

C. numbers(1);

D. numbers[0];

What is the correct way to initialize an array of integers with values {1, 2, 3} in C#?

A. int[] numbers = new int[] {1, 2, 3};

B. int numbers[] = {1, 2, 3};

C. int[] numbers = {1, 2, 3};

D. numbers[] = {1, 2, 3};

Which of the following statements is true regarding arrays in C#?

A. Arrays in C# can dynamically resize

B. The length of an array cannot be changed

C. Arrays in C# can only store primitive types

D. None of the above