Context: The objects are identical except for their temperatures.
Which object has the most thermal energy?
A. a 5-kilogram bucket of water at a temperature of 66°F
B. a 5-kilogram bucket of water at a temperature of 84°F
C. a 5-kilogram bucket of water at a temperature of 78°F
Identify the correct option from the choices provided and respond with the letter of the correct option.

B