JAMB Physics 1978 Question 15

The statements below were made by some students describing what happened during the determination of the melting point of solids. 1. The temperature of the solid was constant until melting started. 2. The temperature of the solid rose until melting started 3. During melting, the temperature was rising 4. During melting, the temperature was constant 5. The temperature continued to rise after all the solid had melted 6. The temperature stopped rising after all the solid had melted. Which of the following gives correct statements in the right order?

1. A.2, 4 and 5
2. B.2, 3 and 6
3. C.1, 3 and 6
4. D.1, 3 and 5
5. E.1, 4 and 5.