A thermometer reads 25°C. What is the equivalent temperature on the Kelvin scale?

To convert from Celsius to Kelvin, the formula is K = °C + 273. Therefore, 25°C + 273 = 298 K. Option A results from subtracting 273 instead of adding, option B is just 273 (forgetting to add 25), and option D results from adding 300 instead of 273.