This question has options. Answer the question about text:

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 .

What changes into a wash of grey and orange ?
Available choices:
-The BNFL nuclear power station
-None of the above choices .
-Sellafield
-Dent Fell
None of the above choices .