An Oceanstor V3 system "alert" shows a message: "SPF [0] LOW Rx power alarm because Low Rx pow ALM of SFP0 is deleted/deflected. "The cause of the malfunction is:
A . Equipmentdistribution voltage is insufficient, the device into a stream of electricity.
B . The power module is not enough power to replace the power module.
C . The voltage of the board is low or the light receiving power is low.
D . Optical module port card loose connection.
Answer: B