WAEC Geography 1988 Question 26

Use the table below to answer the question.
Month: J F M A M J J A S O N D
Temperature (°C): 24 24 27 28 30 29 27 27 27 28 27 25
Rainfall (mm): 2 2 0 0 18 505 610 368 269 48 10 0
The annual range of temperature is

1. A.3°C
2. B.4°C
3. C.5°C
4. D.6°C
5. E.7°C