If $$Z\left( s \right) = \frac{{\left( {s + 4} \right)\left( {s + 9} \right)}}{{\left( {s + 1} \right)\left( {s + 16} \right)}}$$ is a driving point impedance, it represents an
A. R-C impedance
B. R-L impedance
C. L-C impedance
D. R-L-C impedance
Answer: Option A
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