Which of the following accurately describes advantages and disadvantages of employing a system of a a. The plant-wide rate may be straightforward, but it is not appropriate for small businesses that of b. The plant-wide rate approach is the simplest to apply, but most likely provides the least accurate c. The plant-wide rate really offers no advantage whatsoever. d. The plant-wide rate approach is the simplest to apply, but it is also the most costly to implement