Context: Two identical refrigerators in a restaurant kitchen lost power. The door of one fridge was slightly open, and the door of the other fridge was closed. This table shows how the temperature of each refrigerator changed over 10minutes.
During this time, thermal energy was transferred from () to ().
A. the surroundings . . . each refrigerator
B. each refrigerator . . . the surroundings
Determine the correct option from the provided choices and reply with its corresponding letter.

A