Got a question ~ can someone help me out ? I want Explanation ~ [ cuz there's something I'm not clear about in this question ]

Thanks for Answering ~

If this plastic cup is heated to its melting point, what will eventually happen to all the particles in the plastic? a. the particles will begin to move enough that they slide past each other. b. bonds will form and the liquid will become a solid. c. the spaces between the particles will get smaller. d. the particles will change state and become a crystalline solid.

Abird sitting high in a tree is an example of what type of wnergy

Phase changes are chemical changes. true or false