Answer:
The correct option is : a. hand axe (Acheulian)
Explanation:
The Homo erectus is a species of the archaic humans. The meaning of the word Homo erectus is the upright man. The stone tools most associated with the Homo erectus are the Acheulean tools. These tools are oval and the pear-shaped hand axes, which are generally found with the remains of the Homo erectus. The Acheulean tools are derived from the more primitive Oldowan technology of the Homo habilis.