170 grams of boiling water are poured into a an aluminum pan whose mass is 890 grams and initial temperature 21ᵒC.

What simplifying assumptions did you have to make?
O The thermal energy of the aluminium doesn't change
O The thermal energy of the water doesn't change
O The heat capasities for fourth water and aluminium hardly change with temperature in this temperature range
O Energy transfer between the system (water plus pan) and the surrounding was neglidible during this time.