**Core Concept**
Rewarming of frostbite patients requires careful management to prevent further tissue damage. The ideal rewarming temperature is crucial in preventing burns and promoting optimal recovery.

**Why the Correct Answer is Right**
Rewarming of frostbite should be done gradually and at a comfortable temperature to prevent thermal burns and promote tissue recovery. The American Red Cross recommends rewarming frostbitten areas in warm (not hot) water at 104°F (40°C). This temperature allows for gradual rewarming of the affected tissues without causing further damage. The rewarming process should be slow and controlled to prevent vasodilation and subsequent edema.

**Why Each Wrong Option is Incorrect**
**Option A:** Water at 106°F (41.1°C) is too hot and can cause thermal burns, exacerbating the frostbite injury.
**Option B:** Water at 98°F (36.7°C) is too cold and may not effectively rewarm the affected tissues, prolonging the rewarming process.
**Option C:** Water at 120°F (48.9°C) is excessively hot and can cause severe thermal burns, leading to further tissue damage and potentially life-threatening complications.

**Clinical Pearl / High-Yield Fact**
Remember the "WARM" acronym for rewarming frostbite: Water (at 104°F or 40°C), Air (dry, not humid), Rewarming (slow and controlled), and Monitoring (closely for signs of thermal burns or further tissue damage).

**Correct Answer: D. Water at 104°F (40°C).