Final answer:
The expected reference range for the body temperature of an adult patient is 36.5° to 37.2℃ (97.7° to 99.0℉) (Option C).
Step-by-step explanation:
The expected reference range for the body temperature of an adult patient is 36.5° to 37.2℃ (97.7° to 99.0℉) (Option C). The average normal body temperature is generally considered to be 37.0°C (98.6°F). Variations in body temperature outside of this range can indicate a potential medical condition such as a fever, infection, or circulatory problems.