Answer: Wedge and screw.
Explanation :
There are several types of inclined planes.
A wedge is made by placing two inclined planes back to back. It is used in many ways like to cut, to split apart etc.
The examples of the wedge are a knife, axe, door stopper, scissors etc.
A screw is made by wrapping an inclined plane around a cylinder.
Hence, the correct option is (C) " wedge and screw".