Folding and faulting are diastrophic process that occurs when the pressure deep within the lithosphere cause the earth's surface to buckle, bend and split apart.
Folding is a product of the collision between two tectonic plates that causes the crust to rise up in folds during or after an earthquake.
Thus, the answer is C. It happens along tectonic plate boundaries.
Interferon's are the answer.
Interferon's are a group of proteins produced by virus infected cells that help other cells resist viral infection. <span />
Cos they dont have vascular structure that can defeat gravity and transport water and minerals