A poor choice of passwords and transmission over unprotected communications lines are examples of:

A. vulnerabilities.

B. threats.

C. probabilities.

D. impacts.

Explanation:

Vulnerabilities represent characteristics of information resources that may be exploited by a threat. Threats are circumstances or events with the potential to cause harm to information resources. Probabilities represent the likelihood of the occurrence of a threat, while impacts represent the outcome or result of a threat exploiting a vulnerability.