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Which of these are incorrect about Darlington amplifier?

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Which of these are incorrect about Darlington amplifier?

(a) It has a high input resistance

(b) The output resistance is low

(c) It has a unity voltage gain

(d) It is a current buffer

The question was asked in an interview.

My question is based upon Cascade and Darlington Amplifier topic in chapter General and Feedback Amplifiers of Analog Circuits

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Right answer is (d) It is a current buffer

The explanation is: A Darlington amplifier has a very high input resistance, low output resistance, unity voltage gain and a high current gain. It is a voltage buffer, not a current buffer.

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