Final answer:
After Ellen and Buster's investment, there will be one reporting entity, which is the Elder Company itself. The company is considered as a single unit for financial reporting purposes.
Step-by-step explanation:
After Ellen Elder and her brother, Buster, each invest $600 into Elder Company, there will be one reporting entity, which is the Elder Company itself. Investment by individual owners does not create separate reporting entities; instead, the company is considered as a single entity for financial reporting purposes.
As investors, Ellen and Buster are part of the ownership, but the company exists as a distinct legal and financial reporting unit.