Question:

Ann, a network technician, has just set up a fiber switch in a data center. To run the fiber cabling, Ann arranges the cable route over the top of the rack using the cable trays, down to the switch, coiling up any excess cable. As Ann shapes the switch, she determines that some messages in the logging buffer stating the received signal of the SFP is not extremely strong enough
Which option below is MOST likely the source of the errors in the logging buffer?