Aseamstress combines lace, satin, tulle, and pearl trim to create a one-of-a-kind bridal gown for a customer. which form of utility is the seamstress providing to the customer?

There are four types of utility marketing: time utility, possession utility, form utility and place utility. These four utilities are also referred as the components of utility marketing model.
In the above question, the Seamstress is providing a "Form Utility" to their customers because the customer has purchased lace, satin, tulle and pearl separately which is combined by the Seamstress to prepare a final product. Thus, the customer sees the final product where all the parts purchased were incorporated. 

They are enjoying the advantage of independence while running their own small business. they can go where they want when they want to, because they control the restaurant's hours. they can also make time for life emergencies, and set the hours to be when they do the best cooking.