What is the frequency response of the system described by the system – McqOptions

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1.	What is the frequency response of the system described by the system function H(z)=\(\frac{1}{1-0.8z^{-1}}\)?
A.	\(\frac{e^{jω}}{e^{jω}-0.8}\)
B.	\(\frac{e^{jω}}{e^{jω}+0.8}\)
C.	\(\frac{e^{-jω}}{e^{-jω}-0.8}\)
D.	None of the mentioned
Answer» B. \(\frac{e^{jω}}{e^{jω}+0.8}\)

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