The given figure shows the module decomposition of a Use set to represent the grouped modules for integration testing, e.g. (a, b) implies modules a and b are tested together. Which one is correct?
1
2
6
3
4
7
8
9
5
The bottom-up integration should start with (3,5).
The bottom-up integration should start with [1,2,6).
The bottom-up integration should start with (1,6).
The bottom-up integration should start with (2,3,4,5).
The bottom-up integration should start with (6,7,8,9).
