Comprehensive and Detailed Explanation (aligned to N10-009):
Multimode fiber uses multiple paths (modes) of light that bounce off the cladding to travel through the fiber.
This is effective for shorter distances but more prone to dispersion.
A). Twinaxial is copper, not fiber.
B). Coaxial carries electrical signals, not light.
C). Single-mode fiber uses a single light path directly through the core without bouncing.
References (CompTIA Network+ N10-009):
Domain: Networking Concepts - Fiber optics: single-mode vs. multimode.