Which type of problems are easy to identify and have available information for solutions?

Well-structured problems are those that are clearly defined, with specific information and procedures available for solving them. In this context, a well-structured problem typically has a known methodology or framework to follow, allowing one to apply established techniques or formulas to arrive at a solution.

For instance, mathematical equations or procedures in scientific experiments exemplify well-structured problems because they provide clear steps and expected outcomes based on the input given. Due to the clarity and availability of information regarding the problem, it is generally straightforward to determine the best approach to resolve it.

In contrast, ill-structured problems lack clearly defined parameters and solutions, that can lead to ambiguity and require more creativity or subjective judgment. Medium-structured problems may have some information available but are not as clear-cut as well-structured problems, making them more complex to handle. Complex problems often involve multiple interrelated factors and uncertainties, posing significant challenges in identifying effective solutions. Thus, well-structured problems stand out due to their straightforward nature and the ease of accessing necessary information, making them the correct answer in this case.