The steps for an in-order traversal of a binary search tree include each of the following except _________.

Circuit level gateway firewalls are less secure than application gateway firewalls

Indicate whether the statement is true or false.

In the following code that uses recursion to find the factorial of a number, what is the base case?

``` private static int factorial(int n) { if (n == 0) return 1; else return n * factorial(n - 1); } ``` a. factorial(int n) b. if (n == 0) return 1; c. else return n * factorial(n - 1); d. Cannot tell from this code