Which of the following is/are behavioural testing technique(s)? a. Equivalence…

Behavioural testing, also called black-box testing, designs test cases from the specification and observable behaviour of the program. Equivalence partitioning divides input values into valid and invalid classes. Boundary value analysis tests values at the edges of those classes. Graph-based testing models objects, states or relationships from the specification. Data flow testing and loop testing inspect internal program structure, so they are white-box techniques. Hence the behavioural techniques are (a), (b) and (c), so option B is correct.