Final answer:
The correct answer is option d. all of the above. The factors used to determine consumer goods categories include whether a product is an industrial or consumer good, whether the customer is willing to compare products, and the stage of the product life cycle.
Step-by-step explanation:
The factors used to determine the consumer goods categories include:
- Whether a product is an industrial or consumer good
- Whether the customer is willing to spend time to compare products
- The stage of the product life cycle
All of the above factors are taken into consideration when classifying consumer goods into specific categories.