One explicit advantage listed in CTAL-TAE is the ability to create and execute tests that cannot practically be performed manually. Examples include real-time response testing, remote testing, and parallel execution. This directly supports option D. Automation is not automatically cheaper or faster to develop and maintain than manual testing; substantial initial implementation and ongoing maintenance costs may be required. Automated tests also do not inherently discover more defects, because defect detection depends on test design, coverage, risk focus, and suitable oracles rather than simply whether execution is automated. Likewise, automated tests may actually require significant maintenance when the SUT changes, particularly when automation is tightly coupled to unstable interfaces. The genuine advantage is that automation enables repeatable, high-volume, time-sensitive, concurrent, or technically impractical test execution beyond what human manual execution can reasonably achieve.
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