The correct answer would be the Sun or sunlight
B? But i think you answered this one already.
Answer:
The geosphere contains the elements that make up the Earth's surface.
hope this helps!
Basilar membrane is the structure that is responsible for supporting the organ of corti. It is located within the cochlea of the inner ear. In addition basilar membrane is stiff structural element that separate two liquid- filled tubes that runs along the coil of the cochlea.
The answer is B Have a great day sweetie