Answer:
The correct option is d. form, time, and place utility
Step-by-step explanation:
In business, form utility can be described as a method in which a product is made ready for consumption so that is sold more and hence raises the economic value.
In business, time utility can be described as a strategy when a manufacturer knows that at which time hos product will be sold more and hence, he takes steps to increase his sale during that time.
In business, place utility is a strategy used by manufacturers to make their products readily available to customers so that they can be sold more.
The manufacturer mentioned in the question is using all these steps.