Which description should the student place on arrow B?

Uplift refers to the geological process that raises rocks and sediments to higher elevations, while compression involves the squeezing of rocks. Although these processes can contribute to the formation of certain geological features, they are not the direct processes involved in the metamorphism of rocks, which specifically requires heat and pressure.

Melting and cooling are processes associated with the formation of igneous rocks, where magma cools and solidifies into rock. While these processes are crucial in the rock cycle, they do not pertain to the metamorphic processes that result in metamorphic rock formation, which specifically involves solid-state transformations.

Erosion and deposition are processes that pertain to the breakdown and movement of sediment. These processes are primarily involved in the formation of sedimentary rocks rather than metamorphic rocks. Metamorphism is characterized by changes in existing rock due to heat and pressure, not by the transport of materials.