Return on investment can be split into which of the following two measures?

A) Investment center income and profit margin.
B) Profit margin and net income.
C) Investment center average assets and investment turnover.
D) Residual income and operating income.
E) Profit margin and investment turnover.

Return on investment can be split into two measures, namely profit margin and investment turnover. Profit margin measures how much profit a company generates from each dollar in revenue, while investment turnover measures how efficiently a company generates sales from its investments. Together, these measures enable investors to evaluate a company's profitability and efficiency in generating returns on its investments. Therefore, option E is the best choice.