In which of the following compounds delocalisation is not possible

1) H2C ═ CH – CH2 – HC ═ CH2Resonance is not possible [delocalisation of π-electrons] Since the π-bonds are isolated and they are non conjugated.2) Resonance [delocalisation of π e-s] is possible, since it is a conjugated system.Resonance [delocalisation of π e-s] is possible, since it is also a conjugated system.Resonance is possible, since it is also a conjugated system.