The answer is argument. :)
When Tim moved to a new town, he experienced a desire to find others with whom he shared common interests and could join in with as friends. Adler would label Tim's desire as social interest.
Yes, they were famous for using canals.
The answer is employment.
Employment is when you are obligated to work for a certain amount of time each day/week/month/year in exchange for a wage/money. Wages can be pain weekly/fortnightly/quarterly/monthly. Amount of wages depends on the position of employment and time worked.