The correct answer is: b) Small, geometric shaped stone tools.
Microliths are small, thin stone tools that were used during the Mesolithic period. They were made by flaking a larger stone into small, sharp blades. Microliths were used for a variety of purposes, including hunting, fishing, and woodworking.
Option a) is incorrect because microliths are not large stone tools. They are small, thin tools that were made by flaking a larger stone into small, sharp blades.
Option c) is incorrect because microliths are not polished stone axes. They are small, thin tools that were made by flaking a larger stone into small, sharp blades.
Option d) is incorrect because microliths are not grinding stones. They are small, thin tools that were made by flaking a larger stone into small, sharp blades.