The answer is backlighting
The answer to this should be B. Worm. A pinion is a the smallest gear out of the listed ones above. spur would be next then wheel and the biggest if them all would be the spur. I'm not completely sure if my answer is 100% correct, but I feel confident enough about it. Hope this helps. :)
Answer:
a KVM switch
Explanation:
KVM switch is devise used for handling or connecting different server at any time by using single mouse, monitor and keyboard. it is like an interface used to connect different server at any given time.
different type of KVM switch are
1) USB based KVm
2) Emulated USB type KVM
3) DDM USB type KVM
4) semi -DDM KVM
The student who uses macros for long words. They are most likely to pass words very easily because they have a macro. While not only saving time, also making a stunning performance as macros usually auto correct as well.