Which statement accurately reflects the properties of fiber-optic cables?

Fiber-optic cables transmit data using light signals, which is a fundamental property that distinguishes them from traditional copper cables. This technology allows for much higher bandwidth and faster data transmission over longer distances, as light can travel through the optical fibers with minimal loss of signal. This characteristic is essential in modern telecommunication systems, where speed and efficiency are critical.

The other statements do not accurately represent the advantages or characteristics of fiber-optic cables. Fiber-optic cables are lighter than copper cables, they typically require less maintenance due to their durability and resistance to environmental factors, and they are generally less affected by weather conditions compared to copper cables, which can degrade or suffer interference. Thus, option B is the correct statement about fiber-optic cables.