According to Goertzel Algorithm, if the computation of DFT is expressed as a linear filtering operation, then which of the following is true?

• A. yk(n)=\(\sum_{m=0}^N x(m)W_N^{-k(n-m)}\)
• B. yk(n)=\(\sum_{m=0}^{N+1} x(m)W_N^{-k(n-m)}\)
• C. yk(n)=\(\sum_{m=0}^{N-1} x(m)W_N^{-k(n+m)}\)
• D. yk(n)=\(\sum_{m=0}^{N-1} x(m)W_N^{-k(n-m)}\)