The correct answer is C: I can't understand it at all. 'It's all Greek to me' is an idiom meaning that something is incomprehensible or impossible to understand — typically used for complex jargon, technical language, or unfamiliar concepts. Option (c) — I can't understand it at all — most accurately captures the meaning.
A.It is foreign to me
B.It appears classical to me
C.I can't understand it at all✓ Correct
D.It's frustrating because it is unfamiliar
Explanation
'It's all Greek to me' is an idiom meaning that something is incomprehensible or impossible to understand — typically used for complex jargon, technical language, or unfamiliar concepts. Option (c) — I can't understand it at all — most accurately captures the meaning.
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