Answer:
a). lever and wedge
Explanation:
The two simple machines that are used in a pair of scissors are --
Lever and a wedge
i). Lever : A lever is a type of a simple machine that contains a long bar which is pivot at a point which is fixed. This fix point is known as the fulcrum of the lever.
ii). Wedge : A wedge is also a type of a simple machine which has two planes inclined to each other and that can move. It is generally used for cutting.
