A 50.0 g piece of aluminum metal with an initial temperature of 120.15 °C is dropped into 100.0 g of water that has an initial temperature of 21.26 °C. The calorimeter is perfectly insulated.

a) The final temperature of the system is 70.71 °C.
b) The final temperature of the system is 30.71 °C.
c) The final temperature of the system is 60.71 °C.
d) The final temperature of the system is 50.71 °C.