单选题The following command is issued on a Cisco Router： Router（configuration）#logging console warnings Which alerts will be seen on the console？（）AWarnings onlyBdebugging， informational， notifications， warningsCwarnings， errors， critical， alerts， emergenciesDnotifications， warnings， errorsEwarnings， errors， critical， alerts
单选题
The following command is issued on a Cisco Router： Router（configuration）#logging console warnings Which alerts will be seen on the console？（）
A
Warnings only
B
debugging， informational， notifications， warnings
C
warnings， errors， critical， alerts， emergencies
D
notifications， warnings， errors
E
warnings， errors， critical， alerts
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