Answer: John could ask the group what they are getting done and what they aren't getting done. If they are't getting things done, they should find a solution of what they need to do to get it done.
I would say it was D. A lump as big as a pin
10 times 9 is 90
hope it helps
Both The Code Book and The Dark Game explore codebreaking, but they are different in their tone, style, and language.