What is the Nyquist-Shannon sampling theorem primarily concerned with?

A) Reducing noise in a signal

B) The maximum frequency that can be accurately sampled

C) The quantization error in digital signals

D) The design of digital filters

Answer: B) The maximum frequency that can be accurately sampled

Explanation: The Nyquist-Shannon sampling theorem states that a signal can be completely reconstructed from its samples if it is sampled at a rate greater than twice its highest frequency component. This principle is critical in determining the appropriate sampling rate to avoid aliasing.