Composite optical fiber cables contain optical fibers and which additional component?

Composite optical fiber cables are designed to combine the advantages of both optical fibers and electrical conductors within a single assembly. In this case, the correct answer indicates that these cables include current-carrying electrical conductors alongside the optical fibers.

The presence of electrical conductors allows for simultaneous transmission of electrical signals and optical signals, which can be particularly useful in applications where both types of communication are needed, such as in telecommunications or industrial networking environments. This dual capability can lead to higher efficiency and improved functionality of data transmission systems.

Other components such as signal processors, copper wire, or shielding material may play roles in different types of cables or systems but are not the defining additional component of composite optical fiber cables. The focus here is on the capability of having electrical conductivity to support various functions while maintaining the integrity and performance of the optical fibers.