正解:A
LC (local connector) is the most likely fiber connector type to be used on a network interface card, because it is a small form factor connector that can fit more interfaces on a single card. LC connectors use square connectors that have a locking mechanism on the top, similar to an RJ45 copper connector. LC connectors are also compatible with SFP (small form-factor pluggable) modules that are often used to link a gigabit Ethernet port with a fiber network12.
Reference:
Optical Fiber Connectors - CompTIA Network+ N10-007 - 2.11
CompTIA Network+ Certification Exam Objectives2