Answer :

To determine the abbreviation for the temperature given in words, we need to break down and convert the different components step-by-step:

1. Identify the Numerical Value:
The given temperature in words is "Twenty-five." Converting "Twenty-five" to numerical form gives us the number 25.

2. Identify the Unit:
The unit specified in the temperature is "degrees Celsius." The standard abbreviation for "degrees Celsius" is represented using the degree symbol followed by the letter 'C'. This gives us °C.

3. Combine the Numerical Value with the Unit:
Now, we combine the numerical value 25 with the unit abbreviation °C to form the full temperature abbreviation.

Thus, the abbreviation for "Twenty-five degrees Celsius" is:

25°C

This is the correct abbreviated form of the given temperature.