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Early testing saves cost MAINLY because
AEarly tests run faster than late-stage tests
BBugs found later cost more and spread further
CEarly tests are reusable only in maintenance
DTesters cost less to hire than developers
Answer & Solution
Correct answer: B. Bugs found later cost more and spread further
Cost of fixing a defect rises sharply downstream: a requirements bug fixed in design vs caught in production can differ by 100x. Earlier detection limits propagation and rework.
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