From the given options, there are two types of items which involves wedge systems or mechanism.
Answer : Option A and Option C
Explanation:
A scissor blade and a axes are perfectly matches the definition and mechanism of wedge and its application, thus these are the two answers.
Wedge are the tool with a triangular shape. These are mechanized to either separate two entities or to keep it in place or can also lift the entity. Wedge is a simple machine that helps to smoothen the function in our day to day lives.