Researchers have used assignment problems to help them address decision-making problems.a.Trueb.Falsec.Can't sayd.None of these

The correct answer to the question is a. True.

Assignment problems are a type of optimization problem that fall under the category of linear programming. They are used to efficiently assign resources or tasks to agents while minimizing costs or maximizing efficiency. Researchers have applied these problems to various decision-making contexts, such as operations research, resource allocation in projects, scheduling tasks, and even in areas like human resource management. This applies to many real-world scenarios where the objective is to find the optimal way of assigning limited resources to tasks or jobs. By using specific algorithms like the Hungarian method or linear programming techniques, these assignment problems can be effectively solved, which aids in informed and quantitative decision-making. Thus, the statement is indeed true.