Ace the CBET Challenge 2025 – Master Biomedical Equipment with Style!

The correct choice is the twisted pair cable, which is characterized by its configuration of two insulated copper wires twisted together in a spiral pattern. This design helps to reduce electromagnetic interference from external sources and also minimizes crosstalk between adjacent wires, making it an effective choice for transmitting data, especially in telecommunications and computer networking.

Twisted pair cables come in two variations: unshielded twisted pair (UTP) and shielded twisted pair (STP). UTP is commonly used in networking, such as in LANs, due to its cost-effectiveness and simplicity. The twisting of the wires is a fundamental feature that aids in improving signal quality over distances.

In contrast, flat cables are arranged in a parallel pattern, which does not provide the same interference resistance as twisted pair cables. LAN cables typically refer to specific types of twisted pair cables used in local area networks, but they are not defined exclusively by the spiral arrangement of wires. Coaxial cables, on the other hand, consist of a single conductor surrounded by insulation and a shield, rather than the twin twisted wires structure. Thus, the defining characteristic of the twisted pair makes it the correct answer.