After making some network changes you power off and then power on your Cisco router. What sequence of events occurs when a router is powered up?（）

• A、Perform POST, locate configuration statements, apply configuration statements, locate Cisco IOS software, and load Cisco IOS software.
• B、Locate Cisco IOS software, load Cisco IOS software, locate configuration statements, apply configuration statements, and perform POST.
• C、Test software routines, POST, load configuration files, load Cisco IOS software, test Cisco IOS software.
• D、POST, locate Cisco IOS software, load the Cisco IOS software, locate configuration statements, and apply configuration statements.
• E、Load and test IOS, load configuration files, test software routines, POST.