During an experiment, a canister filled with hot water was added to a beaker filled with cold water. In which direction did the heat energy move?

a
Equal amounts of heat energy from each container moved in both directions.
b
The heat energy moved from the cold water of the beaker into the hot water of the canister.
c
No heat energy moved, as it all remained in the canister of hot water.
d
The heat energy moved from the hot water of the canister into the cold water of the beaker.

d) The heat energy moved from the hot water of the canister into the cold water of the beaker.