Ahmed, a network administrator, is looking at the events added to a Windows Server 2019 system log in the Event Viewer. He notices three events being highlighted with a yellow exclamation mark. The events were related to a remote access attempt. If Ahmed were to treat this as a warning sign, what kind of issues should he anticipate? a. The system may become unstable. b. The services running on the server may not function properly. c. Users may be prevented from accessing the system. d. The functionality of the system can be affected.