The ideal OP-AMP has the following characteristics

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A. R_i = $$\infty $$, A_V = $$\infty $$, R_O = 0

B. R_i = 0, A_V = $$\infty $$, R_O = 0

C. R_i = $$\infty $$, A_V = $$\infty $$, R_O = $$\infty $$

D. R_i = 0, A_V = $$\infty $$, R_O = $$\infty $$

Answer: Option A

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