Answer:
The Neutrality effect.
Step-by-step explanation:
'Neutrality' is demonstrated as the effect that primarily aims to eliminate any kind of avarice, emotion, or fear from the financial decisions and make them completely objective.
In the given example, Katy's behavior exemplifies the 'neutrality effect' when she does not reply to Aaron's heartfelt mail despite volunteering and helping them to meet their deadline as she does not want to include 'emotions' at the time of distribution of the profit of the project. She wishes the financial decision to be taken objectively without inclusion of any kind of emotions or avarice in it.