Which tool is specifically described as used for cutting or chopping?

The chopper is specifically designed for cutting or chopping due to its sharp edge and robust design, making it an effective tool for processing material such as wood or meat. In archaeological contexts, choppers are often associated with early hominins, who used them for a variety of tasks requiring a reliable cutting instrument. This tool represents an important technological advancement, facilitating access to new food sources and resources.

The other options, while they may also have cutting capabilities, are not primarily recognized for their cutting or chopping function. For instance, the Acheulean handaxe is a versatile tool but is more associated with general tool-making than specifically cutting or chopping. Backed microliths and Mousterian backed knives are more refined tools used for tasks like slicing and are part of more complex tool-making traditions, but they do not serve the fundamental chopping purpose as effectively as a chopper. Thus, the chopper stands out distinctly for its dedicated design tailored for chopping functions.