Two groups of students were asked to create a simulation of the rock cycle. The following lists the order of the steps each group used.

Which statement correctly indicates why one of the group's steps were accurate or inaccurate?
A. Group 1 was accurate since metamorphic rock must melt then cool in order to change to
igneous rock
B. Group 2's model was inaccurate because heat and pressure will not change a sedimentary
rock to a metamorphic rock
C. Group 1 was inaccurate because sedimentary rock cannot be made from weathering, erosion
of and cementation of igneous rock.
D. Group 2 was accurate due to the fact that metamorphic rock must be weathered and then
cemented before igneous rock can be produced