See the image below:

In order to test the purchase of school supplies, logical test cases must be created based on the Data Combination Test. It has been agreed to use an average depth test. This means that Pairwise Testing will be applied on all data.

Pens-paper-school diary-bag

Test cases are designed using the classification tree below:

What is the minimum number of test cases that will be generated when using the Pairwise Testing technique? (What is “N” as a minimum?)