Final answer:
The correct water temperature for perineal care is a. 100-104 °F, which is warm, close to normal body temperature, and within the body's tolerable temperature range.
Step-by-step explanation:
The question refers to the recommended water temperature for perineal care, which is a hygiene practice that is important in healthcare settings, particularly for patients who are unable to attend to their personal hygiene. The temperature of the water used should be comfortable for the patient and should neither cause harm nor discomfort. Considering that the average normal body temperature is 98.6 °F (37.0 °C), and the body tolerates a range from 75 °F to 111 °F (24 °C to 44 °C), the appropriate water temperature for perineal care should be warm and close to the body temperature. Therefore, the correct answer is a. 100-104 °F. This water temperature range is warm without being excessively hot and falls well within the body's tolerable temperature range.