Question: A CFG is ambiguous if A . there is a sentence such that no parse tree can be constructed from the CFG B . there

A CFG is ambiguous if
A. there is a sentence such that no parse tree can be constructed from the CFG
B. there is a sentence such that one parse tree can be constructed from the CFG
C. there is a sentence such that two or more parse trees can be constructed from the CFG
D. None of the above
A CFG is ambiguous if A . there is a sentence

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