Florian discovers a rock that is broken into pieces. each piece has several bands. which type of rock does florian predict these pieces will change into when subjected to heat and pressure?

The correct answer is: metamorphic.

Metamorphic rocks are rocks formed from transformation of existing rocks by the influence of pressure, heat or chemically active fluids. Those rocks go through chemical or physical changes-change in form.

The original rock is called protolith and it may be a sedimentary, igneous, or existing metamorphic rock.

Some of the metamorphic minerals are isillimanite, kyanite, andalusite, and some garnet.

(C)

Explanation: Metamorphic rocks. Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form".