Answer:
The correct answer is disparate treatment.
Step-by-step explanation:
In terms of labor law and employment discrimination, disparate treatment is defined as an unequal behaviour towards someone because of a "protected characteristic" this means an individual's gender, race, religion, age, etc...
Employees are protected by the law which prevents employers from treating the employees different because of any of the protected characteristics in order to prevent any kind of discrimination. In Kansamb Residential School when they refuse to recruit teaching staff that practices other religions even when they meet the hiring requirements they are giving an unequal behaviour because of a protected characteristic therefore giving disparate treatment.