Which of the following is a benefit of using fiber optics?

Using fiber optics offers low signal loss, which is one of its most significant advantages over traditional copper cabling. Signal loss, also known as attenuation, refers to the reduction of strength of the signal as it travels through the medium. Fiber optic cables, which transmit data as light signals, experience minimal loss over long distances compared to copper cables, which can lose signal strength due to electrical resistance. This low signal loss enables fiber optics to maintain high-quality data transmission over greater distances without requiring as many repeaters or amplifiers.

Additionally, fiber optics are capable of supporting much higher bandwidth capacities compared to copper, allowing for faster data rates and the ability to handle more data traffic simultaneously. This capability is increasingly important in today's digital age, where data demands are growing rapidly.

The other options indicate drawbacks: higher weight than copper is not a characteristic of fiber optics, as they are generally much lighter; susceptibility to electromagnetic interference is also a disadvantage seen in copper wires; and limited bandwidth capacity is contrary to one of fiber optics’ primary benefits. Thus, low signal loss distinctly highlights why fiber optics are favored for high-performance data transmission.