Which object has the most thermal energy?

 - a 100-gram mug of cocoa at a temperature of 119°F
 - a 100-gram mug of cocoa at a temperature of 126°F
 - a 100-gram mug of cocoa at a temperature of 107°F
All three mugs of cocoa have the same mass but different temperatures. Since the 126°F mug of cocoa is the hottest, it has the most thermal energy.