Answer:
B
Explanation: because a kenning is a compound that uses two words, to describe a noun (person place or thing) so hte "thunder-fire" isnt a word. It was combined.
Spontaneous-ly, spontaneous-ness
Science fiction – a genre of fiction dealing with the impact of imagined innovations in science or technology, often in a futuristic setting. or depicting space exploration. Exploring the consequences of such innovations is the traditional purpose of science fiction, making it a "literature of ideas".