Answer:
Targeting.
Step-by-step explanation:
In marketing, Targeting refers to dividing your whole market into specific groups, and focus all your marketing effort to the group that is most likely would find your product relevant and appealing.
In the example above, we now that NOVA only markets its plastic chemical products to food and electronics industry because these industries have a lot more application for NOVA's product compared to other industries.
(For example, the food industries could use the plastic products for their packaging and utensils. The electronic industries could use NOVA's product for its product's structure.)