Which of the following types of tools can be used to detect defects?

Pareto Charts: Used for prioritizing defect types but not for detecting defects.

Output Capture Utilities: Tools designed to capture and record the output of software, making them effective in detecting discrepancies and defects in the system.

File Format Converters: These tools convert data between different formats and are not used for defect detection.

Defect Control Charts: Used for monitoring and controlling defect data over time but not for initial detection.

Conclusion: Output capture utilities are directly involved in detecting defects by capturing output and comparing it to expected results. This aligns with software testing practices where tools that directly capture and log output are essential for defect detection.