Final answer:
C. Corrective maintenance involves troubleshooting and repairing errors and defects in a system or technology that has already occurred. It is different from preventive and adaptive maintenance.
Step-by-step explanation:
Troubleshooting and repairing errors and defects is known as Corrective maintenance. This type of maintenance aims to fix issues that have already occurred in a system or technology, ensuring that it functions properly.
Corrective maintenance involves identifying and addressing problems, such as software bugs, hardware malfunctions, or system errors. For example, if a computer crashes due to a software issue, a technician would troubleshoot and repair the problem to restore normal functionality.
Unlike preventive maintenance (which aims to prevent problems from occurring) or adaptive maintenance (which involves modifying technology to meet changing needs), corrective maintenance specifically focuses on resolving existing issues.