Which of the following techniques MOST clearly indicates whether specific risk reduction controls should be implemented? Threat and vulnerability analysis. Risk evaluation. Countermeasure cost/benefit analysis. ALE calculation.

The technique that MOST clearly indicates whether specific risk reduction controls should be implemented is **Countermeasure cost/benefit analysis**. This technique evaluates the costs associated with implementing specific risk reduction measures against the expected benefits or risk reductions they provide. By analyzing the financial implications and effectiveness of various controls, organizations can make informed decisions about which specific risk reduction controls are worth implementing based on their potential return on investment.