A user has reported inadvertently sending an encrypted email containing PII to an incorrect distribution group. Which of the following potential incident types is this?

In a binary tree, each node may point to __________ other node(s).

a. no b. one c. two d. Any of these e. None of these

Suppose an ArrayList list contains {"red", "red", "green"}. What is the list after the following code?

``` String element = "red"; for (int i = 0; i < list.size(); i++) if (list.get(i).equals(element)) { list.remove(element); i--; } ``` a. {"red", "red", "green"} b. {"red", "green"} c. {"green"} d. {}