The correct answer is: a) Early hominin activity.
Handaxes and cleavers are stone tools that were first used by early hominins, such as Homo erectus, over 2 million years ago. They are made by chipping away at a piece of stone until it has a sharp edge. Handaxes and cleavers were used for a variety of purposes, including hunting, butchering, and woodworking.
The discovery of handaxes and cleavers in Andhra Pradesh indicates that early hominins were active in this region over 2 million years ago. This is significant because it provides evidence of the early spread of hominins out of Africa.
The other options are incorrect because they do not provide a direct link to early hominin activity. Option b, use of fire, is possible, but it is not certain that the handaxes and cleavers were used for this purpose. Option c, hunting and gathering practices, is also possible, but it is not certain that the handaxes and cleavers were used for this purpose. Option d, artistic expression, is unlikely because early hominins did not have the same level of cognitive development as modern humans.