william, an accountant, received the following payments: $1,000 honorarium for acting as treasurer for the local netball association (2 marks) $20,000 lump sum to entice him to move to another firm. william accepted the offer and commenced employment (2 marks) $200 cash prize for winning the office footy tipping competition. (1 mark) what amounts would be considered assessable income? provide reasoning and references for your decision.