Which of the following describes a "biquad filter"?

A) A filter that can process signals in two dimensions

B) A type of filter with a transfer function characterized by two poles and two zeros

C) A filter that only allows high frequencies

D) A filter that requires extensive computational resources

Answer: B) A type of filter with a transfer function characterized by two poles and two zeros

Explanation: A biquad filter is a second-order filter with a transfer function that includes two poles and two zeros, making it versatile for various filtering applications in DSP.