How does earth recycle tectonic plate material? i need a little plz

Rocks are heated, metamorphosed, melted, weathered, sediment is transported, deposited and lithified, then it may be metamorphosed again in yet another cycle.  This recycling of the material of the Earth's crust has been going on for billions of years, as far back as there is a preserved geologic record (about 4 billion years). Weathering and erosion at the Earth's surface can break down rocks into small bits. These can be deposited as sediments that become sedimentary rocks. Burial, with rising pressure and temperature, can alter sedimentary (as well as any other) rocks to form metamorphic rocks. Continued rise in temperature can eventually melt rocks and produce magma. Cooling of magmas leads to igneous rocks, etc.

Ithink the answer is a or d.