What Statement Would Require Immediate Correction When Treating a Hypothermic

What statement would require immediate correction when treating a hypothermic patient with a deep cold injury to his left foot, ankle, and lower leg?

A) "Why don't we rewarm his lower left leg as quickly as possible."
B) "It is important that we keep the left leg elevated."
C) "We will need to gradually rewarm the patient at a rate of 2 to 3 degrees per hour."
D) "Since his SpO₂ is 98%, we may not need to administer any oxygen."