Final answer:
Option D. is correct. The correct power steering fluid for a vehicle is specified in the owner's manual, service manual, or a technical service bulletin, but not typically in a parts and labor guide.
Step-by-step explanation:
The one option that would likely not indicate the correct power steering fluid to be used in a vehicle is A) a parts and labor guide. Parts and labor guides are typically used for estimating repair costs and do not usually specify the type of fluids for a vehicle. The correct power steering fluid for a vehicle is most commonly found in C) the owner's manual, D) the service manual, or occasionally in a B) technical service Bulletin if there has been a change or update to the manufacturer's specifications.
The correct power steering fluid for a vehicle can be determined by using several sources. A parts and labor guide is not likely to indicate the correct power steering fluid to be used in a vehicle. However, a technical service bulletin, owner's manual, and service manual are reliable sources to find the correct power steering fluid for a specific vehicle.