Une Clic... [Review Topics] [References] For each example, specify whether the two structures are resonance contributors to the same resonance hybrid. a) + H3C-O=CH-CH2-CH3 - H3C--CH2-CH-CH3 b ) + H3C-CH=CH-CH=CH-CH2 H3C-CH-CH=CH-CH=CH2 c) + H3C-CH=CH-NH2 H3C-CH-CH=NH2