C is the answer.
Metamorphic rocks is when a rock changes under time and lots of pressure.
Sedimentary is rocks made of sediment.
Igneous rocks are rocks that are made of magma.
Knowing this, C is closest to the definition of metamorphic rocks.
Autotrophs <span>produce their food by absorbing the sun's radiation</span>
The one that is true is the last one that you listed