What does a simple fiber-optic system consist of?

A simple fiber-optic system fundamentally includes a transmitter, a receiver, optical fiber, and connectors.

The transmitter is responsible for converting electrical signals into optical signals using a light source, such as a laser or LED. The optical fiber serves as the medium for transmitting the light signals over distance, utilizing total internal reflection to maintain the signal's integrity. Finally, connectors are essential for joining different segments of the fiber optic cable and ensuring the efficient transfer of light from the fiber to the receiver and vice versa.

While other options mention components such as LEDs or lasers, the key elements that define a basic fiber-optic system revolve around the interaction between the transmitter, receiver, optical medium (fiber), and connectors. Connectors are crucial for establishing reliable connections, enabling the optical signals to flow seamlessly throughout the system. Thus, option C accurately captures the fundamental components necessary for a viable fiber-optic setup.