A 57-year-old woman is undergoing orthotopic liver transplantation for cirrhosis. After the induction of anesthesia, invasive monitors are placed. Sixty minutes after induction of anesthesia, her core temperature is 34.7 °C. Which of the following mechanisms of heat loss is MOST responsible for this decrease in temperature?

A) Convection
B) Evaporation
C) Radiation
D) Redistribution