Answer:
Metal knives.
Explanation:
The Neolithic period is also called the New Stone Age, it took place in the late 19th century B.C. This period was characterized by the use of stone tools whichg were shaped by polishing or grinding. Other important aspects of Neolithic were the magalithic architecture and the spread of agricultural practices. This made it possoble to humans to adap sedentary ways of living, domesticating animals and more plants.
A metal knife would not be found in this period, they were invented during the next one called the Bronze Age. Here, copper metallurgy was introduced making the use of good part of stone technology obsolete.
