In the given figure below, the appropriate terms A, B and C respectively are:
A - Freezing , B - Vaporization, C - Solidification
A is freezing, B is vaporization and C is solidification.
Freezing is defined as a phase transition in which a liquid turns into a solid when its temperature is lowered below its freezing point.
Vaporization is defined as the conversion of a substance from the liquid phase into its gaseous (vapour) phase.
Solidification is defined as the transition of a substance directly from the gas to its solid phase.