what is an example of goods?\no a hotel room\no a good haircut\no a car wash\no a hard cover book

Brief Explanations:

Goods are physical, tangible items. A hotel room is a service of accommodation, a good haircut is a service related to personal grooming, and a car - wash is a service for cleaning a vehicle. A hard - cover book is a physical, tangible item and thus a good.

Answer:

D. a hard cover book