The answer is C
https://en.m.wikipedia.org/wiki/Parent_material
The CEREBELLUM is the region of your brain that helps balance,posture and coordinating muscle movements.
Gradient alloyed CdSe/ZnS Quantum Dots present size dependent properties for sensitive cellular imaging, drug delivery and light emitting devices. https://www.cd-bioparticles.com/product/cdse-zns-quantum-dots-list-202.html