Which of the following statements is true with regard to the departmental OH rate method?

a.It is logical to use this method when OH resources are consumed by various products in substantially the same way throughout multiple departments.

b.It is logical to use this method when OH resources are consumed by various products in substantially different way throughout multiple departments.

c.Each department has the same rate for the same activity pool. It requires on OH cost pool and one rate.

d- It requires on OH cost pool and one rate.