Im going to say Cave Art.. Hard knowing with out the answers to choose from.
I know that c and d are correct because if you read the paragraph you see that none of the other anwseres relate to the qustion
What needs motivated the invention of the cash register? clerks from embezzling money, and the need for better sales accounting
Oil paint because it has the consistency of pigments mixed with drying oil (commonly linseed oil). The oil paint drys more slowly which makes it more easy to blend each color together & provided a softer merging of one tone into the next, becoming a well used tool to artist.
