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
From the given choices, select the correct answer and reply with the letter of the chosen option.

A