37. The 1H NMR spectrum of a C6H8 hydrocarbon displays a single sharp signal. The 13C NMR spectrum has two resonance signals. Which of the following compounds would fit this evidence?

(A) Dewar benzene (bicyclo[2.2.0]hexa-2,5-diene)
(B) Benzvalene
(C) Cyclohexadiene
(D) Cyclohexane

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