The correct option is C Microliths
The earliest people made fine, small pieces from hard stone. These pieces were called Microliths. They were fixed to wooden or bone handles which then served as knives, arrows, sickles etc. These weapons were used to dig soil, chop the trees for the bark, remove the skins of animals, clean the skins, stitch clothes out of the skin, cut meat and bone, chop fruit and roots and hunt the animals easily.