Context: 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 ?
Options:
0. The BNFL nuclear power station
1. None of the above choices .
2. Sellafield
3. Dent Fell
Answer: 1