Answer and Explanation:
A. Equity theory
The principle of equality is used to ensure that all resources are equitably distributed among all individuals.
In the given question, Chris wants to treat everyone equally so that everyone can be equally encouraged, so this method should be kept in the equality principle.
B. Motivation
Business tries to increase the courage of a person or a laborer with various livelihood practices and guidance, it is called Motivation.
In this situation, the business tries to motivate her employees.