The late dawn sky was a surreal mix of pale blue with white fluffly clouds , that changes into a wash of grey and orange . And where the sky reached it 's darkest point loomed the BNFL nuclear power station . We stood there for a second and silently cursed the abomination that was Sellafield . We walked eastwards towards Dent Fell , which really is like a gateway to another planet .
Question: What changes into a wash of grey and orange ?
The answer to the above question:


None of the above choices .