WAEC Geography 2018 Question 11

Use the climatic data below to answer this question.
Month: Jan, Feb, Mar, Apr, May, June, July, Aug, Sept, Oct, Nov, Dec
Temperature (°C): 26, 26, 26, 26, 26, 27, 27, 28, 28, 28, 27, 27
Rainfall (mm): 35, 50, 104, 139, 195, 228, 248, 243, 245, 250, 91, 55
The annual range of temperature for the station is

1. A.1°C.
2. B.2°C.
3. C.22°C.
4. D.28°C.