$98.6°F$

The correct answer is $98.6°F$. The text states that a temperature measured as $37.0°C$ on the Celsius scale is equivalent to $98.6°F$ on the Fahrenheit scale.

• $37.0°F$ is incorrect; it confuses the numerical value from the Celsius scale.
• $100°F$ is a common temperature associated with a fever, not the normal body temperature.
• $212°F$ is the boiling point of water, which is far too high for a human body temperature.

Ok