17.R evidence for the presence of the C-C would be most difficult to detect in the case of which of these alkenes?
(A)61bbe3e2c6e3c.jpg
(B)61bbe3ecc8213.jpg
(C)61bbe3f479e8d.jpg
(D)61bbe3fbc8d61.jpg
(E)61bbe403286f9.jpg

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