What are ways in which classification trees support the application of pairwise testing?

Classification trees support the application of pairwise testing in the following ways:

a. They help to identify inputs to be used by the pairwise test technique - This is true because classification trees show the classes and subclasses of inputs for a given scenario in a graphical way.

b. They show the combinations needed to cover all-pairs - This is true because classification trees can be used to generate the combinations of inputs that cover all pairs using a mathematical algorithm.

c. They help to identify particular combinations of interest - This is true because classification trees can be used to highlight or prioritize certain combinations of inputs that are more relevant or important for the scenario.

d. They show both typical and atypical behavior - This is false because classification trees do not show the behavior or the expected results of the system under test, only the inputs and outputs.

e. They show the expected results for the various test cases - This is false because classification trees do not show the expected results or the verification criteria for the test cases, only the inputs and outputs. Verified References: [ISTQB® Certified Tester Advanced Level Test Analyst CTAL-TA], Section 3.5.2, page 42.