Coaxial cables transmit data using electrical signals, not light. They primarily use copper wire, which is an excellent conductor of electricity. The type of cables distinguished by single mode and multimode refers to fiber optics, not coaxial cables. ;
Coaxial cables transmit data using electrical signals and primarily utilize copper wire for conductivity, making option C the correct choice. They are commonly used for both standard and high-definition television connections. The other options provided are not accurate representations of how coaxial cables function.
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