I'm not exactly sure, but i think it's C, sorry if wrong.
Answer: Their performance varies considerable, they are often idle, and then might have an occasional flurry of activity.
Explanation: hope this helps :)
Clarity and consistency, I think are your answers.
I hope I helped.
Ratiocination is the process of logical reasoning. A ratiocinative tale is a type of detective story in which there is a conflict or a case the detective needs to solve, following clues is a logical process. The attractive aspect of these stories is that the clues tend to be misinterpreted by some of the characters, which leads the reader to follow this train of thought, and it is only at the end that the detective reveals the truth, disclosing the true meaning behind the different clues.
