Answer:
C
Explanation:
They welcome him and discuss what he says to them
Tounge is where digestion starts
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^_^