what is it called when weapons are formed by striking two stones against each other? percussion pressure…

what is it called when weapons are formed by striking two stones against each other? percussion pressure flaking processual archaeology cultural process approach
Answer
Brief Explanations:
Percussion is the technique of striking two stones together to form weapons. Pressure flaking is a different stone - working method. Processual archaeology and cultural process approach are archaeological theories, not related to this stone - striking technique.
Answer:
A. Percussion