Which Statement Made to a Nurse About Direct Measurement of Energy

Which statement made to a nurse about direct measurement of energy used by the human body indicates that more teaching is necessary?

A) "The indirect calorimetry is the way my health-care provider measures energy."
B) "My doctor could measure my energy by placing me in the heat-insulated chamber."
C) "Direct calorimetry will measure my expired oxygen and carbon dioxide levels."
D) "Direct calorimetry measures energy by the heat that emanates from my body."