If a novel includes clues and detectives, it's most likely a a. science fiction story. b. romance novel. c. mystery. d. western.

If a novel includes clues and detectives, it's most likely a C. mystery.

A novel is exactly the opposite of a short story. It is basically the narration of a story elaborated in its full length. There are various types of novels based on their genre.

These genres define what the novel is about. If the story of the novel contains revolves around mysterious happenings and the probe into the happenings, the genre of the novel can be said to be 'mystery'.

The other options mentioned are:

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.