A.I. Explanation:

Option 1: "When we trace our family's history, we may find bad as well as good things."

Explanation: The text mentions that tracing family roots can be fun and may reveal aspects of the family's past, including the phrase 'even if you find a skeleton in the closet.' This implies that while there may be enjoyable discoveries, there could also be unpleasant ones, thus supporting the idea that both good and bad things may be found.

Option 2: "Tracing our family tree is not worth the effort."

Explanation: This option contradicts the overall positive tone of the text, which suggests that tracing family history can be enjoyable and informative. The text encourages the activity, indicating it is worth the effort, thus making this option incorrect.

Option 3: "The records we must search in order to come up with a family tree have changed due to the World Wide Web."

Explanation: While the text states that the task of tracing ancestry has become simpler due to the World Wide Web, it does not explicitly state that the records themselves have changed. Therefore, this option misinterprets the text, making it incorrect.

Option 4: "Tracing one's family tree is worthwhile for everyone."

Explanation: The text suggests that tracing family roots can be fun for many, but it does not claim that it is worthwhile for everyone. The use of 'many' indicates that it may not appeal to all individuals, thus making this option too absolute and incorrect.