What statement is correct regarding the output shown in the graphic?

Refer to the shown below.
%LINK-3-UPDOWN: Interface Serial0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to up
What statement is correct regarding the output shown in the graphic?

A.
These two log messages will not have a severity level. They are not errors but are just
informational messages.

B.
The first log message is categorized as a warning message.

C.
These messages regarding interface status are normal output and will always be displayed when
you exit config mode.

D.
The first log message is an error message with a severity level of 3.

E.
The second message would be shown if the logging console warning command had been issued.

Explanation:
The 3 in the LINK-3-UPDOWN message indicates the severity level of the message.