Consider the following iterative code used to convert a decimal number to its equivalent binary: #include void dec_to_bin(int n) int arr[31],len = 0,i; if(n == 0) arr[0] = 0; len = 1; while(n != 0) arr[len++] = n % 2; _______; for(i=len-1; i>=0; i--) printf("%d",arr[i]); int main() int n = 10; dec_to_bin(n); return 0; Which of the following lines should be inserted to complete the above code?

Answer: Option B