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.
Force is a vector quantity.
A vector quantity has magnitude and direction which makes it different from the scalar form of quantity. Scalar has only magnitude or size or degree of amount.
For example, acceleration. The velocity, displacement and pressure.
An investigation is to search something up to look for the facts an demonstration is showing a reason of proof for something