Final answer:
Keith Parker, who is responsible for profits, return on investment, and residual income, is most likely the manager of an investment center, as these responsibilities are characteristic of an investment center. Option A is correct.
Step-by-step explanation:
The manager described in the question is most likely the manager of an investment center. The key responsibilities mentioned include not only profits but also return on investment (ROI) and residual income, which are metrics typically used to evaluate the performance of an investment center.
An investment center is a division or segment of a company for which the manager is responsible for profits as well as decisions about the assets invested in that center.
In contrast, a profit center is responsible only for generating profits and is evaluated on profitability alone, not on the use of capital. A cost center focuses only on minimizing costs and does not directly generate revenue.
A revenue center is concerned with the revenue generation process but does not have control over investments or costs to the extent that an investment center does.
Therefore, Keith Parker is most likely the manager of a(n) A) investment center.