Final answer:
The correct options describing phase changes where matter transitions to a more energetic state are melting and vaporization. These endothermic processes involve the absorption of energy to change the state from solid to liquid and liquid to gas, respectively.
Step-by-step explanation:
The question at hand is about phase changes in which matter transitions to a more energetic state. Based on the provided information, the correct answer is c) melting and vaporization. These two processes represent the transition of matter from a less energetic state to a more energetic one. In melting, solid turns into a liquid, absorbing energy as it overcomes its ordered structure. During vaporization, liquid changes into a gas, requiring energy to overcome intermolecular forces and to allow the molecules to move freely as a gas. In contrast, processes such as freezing and deposition are exothermic, releasing energy as they lead to a more ordered state of matter.