Final answer:
The test manager's approaches are analytical, standard-compliant, consultative, and reactive, which match the provided definitions and are most accurately represented by option 'B' from the question.
Step-by-step explanation:
The test manager implemented the following four common types of test strategies/approaches in their test plan:
- Analytical: Control algorithms are checked against a standard, indicating an analysis of requirements against defined criteria.
- Standard-compliant: The algorithms must adhere to energy-saving regulations, which is a methodology based on predefined standards.
- Consultative: External security experts are employed to perform security testing, suggesting a consultative approach involving third-party expert advice.
- Reactive: The acceptance test is experience-based, hinting that it reacts to real-world use and feedback rather than predefined scripts or criteria.
Other approaches like methodical involve a structured method following specific procedures or steps, and regression-averse refers to a strategy that avoids regression testing, which doesn't seem to be explicitly stated in the test strategies described. Thus, the correct classification would be 'B. Analytical, standard-compliant, consultative, and reactive'.