To answer this question, you need to understand the concept of software testing and its different types.
Option A) Component Integration Testing - This option is incorrect. Component integration testing refers to testing the integration of multiple software components to ensure they work together correctly.
Option B) Component System Testing - This option is incorrect. Component system testing refers to testing the entire system composed of multiple components to ensure it functions correctly.
Option C) Component Sub System Testing - This option is incorrect. Component subsystem testing refers to testing a subset of system components to ensure they work together correctly.
Option D) Maintenance Testing - This option is incorrect. Maintenance testing refers to testing performed on a software system after it has been deployed to ensure it continues to function correctly and address any issues or bugs that arise.
The correct answer is A) Component Integration Testing. This testing is also called Link Testing because it focuses on testing the integration and interaction between different software components to ensure they work together correctly.