What is the normal body temperature range in Fahrenheit?

The normal body temperature range for a healthy adult typically hovers around 97°F to 98.6°F when measured orally. Option B, which states a range of 97.7°F to 99.5°F, effectively captures this expected physiological range while accounting for slight individual variations and different methods of measurement. This range encompasses what is broadly accepted as normal and reflects minor differences in temperature that can occur due to factors like time of day, level of activity, and the individual's overall health.

When assessing the other choices, it's important to note that they either fall outside the generally accepted normal ranges or provide more extreme values that are less representative of typical human body temperatures. Ranges that extend too low or too high might misrepresent what is considered a healthy temperature for most individuals. Consequently, this understanding reinforces why the selected range in option B is the most appropriate and clinically relevant.