What will be the output of the following C code?

#include <stdio.h>
int main()
{
    int i = 1;
    while (i < 5) {
        printf("%d ", i++);
        i++;
    }
    return 0;
}

• A2 4
• B1 3 4
• C1 3
• D1 2 3 4 5