Use the picture to answer the question.
Information
The picture shows metamorphic rock with banding patterns rows of black and gray lines.
Question
When did the banding patterns on this metamorphic rock form?
Answer options with 4 options
A.
when molten magma cooled and crystals formed
B.
when grains of sediment were cemented together
C.
when volcanic lava was ejected and cooled quickly
D.
when the original rock underwent heat and pressure