Answer:
The technique which the organization used in analyzing its donor is called Customer segmentation
Explanation:
Customer segmentation is the process of breaking large groups of customers into smaller, more homogeneous groups. This division are done specifically probably for marketing using attribute such as age, gender, interests and spending habits.
In the case of the CRM marketing campaign in Toronto, they inability to analyze all the data they had poses a challenge hence they reason why they segmented their customers according to their birthday. And customers are reached out according to those whose birthday falls nearby.