Which of the following shows a temperature measurement documented correctly?

• A. 25.0 °C
• B. 25.0 K°
• C. 25.0 degrees
• D. 25.0 C

Answer: (A)

Verified step by step guidance

1. Understand that temperature measurements must include both a numeric value and the correct unit symbol to be properly documented.
2. Recall the correct unit symbols for temperature: Celsius is written as °C, Kelvin as K (without a degree symbol), and Fahrenheit as °F.
3. Evaluate each option: '25.0 °C' uses the correct numeric value and unit symbol for Celsius; '25.0 K°' incorrectly places the degree symbol after K; '25.0 degrees' is incomplete because it lacks a specific temperature scale; '25.0 C' is missing the degree symbol.
4. Recognize that the proper format for Celsius temperature is a number followed by the degree symbol and the letter C, written as \$25.0\ \degree C$.
5. Conclude that the correctly documented temperature measurement is the one that follows this format exactly.