Who believed that Squadron 80 had been located by the Germans?

The belief that Squadron 80 had been located by the Germans is attributed to Roald Dahl and Frank Coke. In "Going Solo," Dahl recounts his experiences as a pilot during World War II, and his observations of the dangers faced by his squadron are a significant theme in the narrative.

Dahl and Coke both share a sense of foreboding that their location was compromised, reflecting the constant threat of the enemy knowing their positions. This belief illustrates the paranoia and tensions present in the wartime atmosphere, highlighting their fears and the reality of the risks they faced in that context.

The other options include different combinations of characters; however, they do not directly reflect the shared belief of Dahl and Coke regarding Squadron 80's location. Each of the other choices introduces individuals who were not central to that particular belief, thus making them incorrect in relation to the question posed.