Context: Two identical greenhouses were next to each other. There were solar panels on the roof of one greenhouse but not on the roof of the other greenhouse. This table shows how the temperature of each greenhouse changed over 2hours.
During this time, thermal energy was transferred from () to ().
A. each greenhouse . . . the surroundings
B. the surroundings . . . each greenhouse
Choose the right answer from the options and respond with its letter.

B