Which situation results in a flashing blue status LED on a Cisco Nexus 7000 switch I/O module?

Which situation results in a flashing blue status LED on a Cisco Nexus 7000 switch I/O module?
A. The switch has just been powered on, and the module is resetting.
B. The module is resetting and both ejector levers are out.
C. The module has been inserted during the initialization process.
D. The module could not power up because of insufficient power.
E. The operator has activated this LED to identify this module in the chassis.