Their performance varies considerable, they are often idle, and then might have an occasional flurry of activity. For example, if their attendance is sporadic, they may have good attendance for a while, and then disappear unpredictably from time to time.
First, Sherlock realized it was weird that Mr. Wilson's assistant pushed for him to join the league. Then he realized when the league accepted Wilson so easily, considering he wasn't married and owned a business. Also, the job itself was very peculiar. Sherlock also saw the knees of Wilson's assistant's pants, they were worn indicating he had been on his hands and knees.
Thats all i know^_^
C. is the correct answer i think hope it helps
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