A medical practice bulk billing for patient services does not usually cost specific services because:
i. it does not control service-product mix.
ii. it cannot control costs.
iii. it does not determine prices.

A) ii and iii
B) i and ii
C) i and iii
D) i, ii and iii

Bulk billing means that the entire cost of the medical service is covered by Medicare, so the medical practice does not determine prices for specific services. Additionally, the practice may not have control over the service-product mix, as patients may present with varying medical needs. While the practice has control over its own costs, it still may not be able to specifically cost out individual services when bulk billing.