Naira implemented trait approach in the given scenario.
Explanation:
The trait approach is a kind of approach that highlights on the traits of an individual. This approach helps in understanding the behavior and thoughts of the individual.
In the business field, trait approach helps in understanding the demands and distinguishable characteristics of the customer. The personality difference between the individuals is identified with the trait approach.
In the above scenario, Naira conducted personality research to determine consumer's distinguishable characteristics. Her research will help her to understand her target better.