Della is interested in the ways in which romantic partners think about each other. her research most neatly fits the realm of

The correct answer is: Social Cognition.

Social cognition comes under the umbrella of Social psychology and focuses on interactions of people with one another, in social situations, and how these people process, store and use information in these situations.


Basically studying the cognitive processes of a human in various social circumstances.

The study helps to understand why people behave in a certain way by looking at both explicit and implicit though processes.