What Purpose Might the Caches of Stone Tools and Stones

Multiple Choice

What purpose might the caches of stone tools and stones for toolmaking left at various sites in East Africa serve for the hominins who made them?

A) They facilitated recurrent food collecting and processing at the site.
B) They were depositories of tools, which were used as a symbol of wealth.
C) They were religious offerings.
D) They were abandoned suddenly when the groups had to flee from predators.