C. They are all things that astronauts have claimed space smells like.
What do the following have in common: charcoal, sulfur, burning metal, welding, brake pads, and even burnt cookies?
A. They are all smells that exist only on habitable planets.
B. They are all of Edwin Hubble’s favorite things.
C. They are all things that astronauts have claimed space smells like.
D. They are all common things that one smells before a stroke.
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