In digital signal processing, what does the term "oversampling" mean?

A) Sampling at a rate lower than the Nyquist rate

B) Sampling at a rate much higher than the Nyquist rate

C) Sampling only at critical points

D) Sampling only once per period

Answer: B) Sampling at a rate much higher than the Nyquist rate

Explanation: Oversampling refers to sampling at a rate significantly higher than the Nyquist rate. This can improve the signal-to-noise ratio and make it easier to filter the signal afterward.