Context: The objects are identical except for their temperatures.
Which object has the least thermal energy?
A. a 250-gram mug of cider at a temperature of 31°C
B. a 250-gram mug of cider at a temperature of 29°C
C. a 250-gram mug of cider at a temperature of 53°C
Pick the correct answer from the listed options and provide the letter of the selected option.

B