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Boundary value analysis (BVA) tests inputs at
AOnly invalid inputs at random
BOnly one valid input per run
CEdges of equivalence partitions
DOnly the middle of each partition
Answer & Solution
Correct answer: C. Edges of equivalence partitions
BVA tests at and just inside/outside partition boundaries (min, min+1, max-1, max). Defects cluster at boundaries (off-by-one errors), so BVA is a high-value technique paired with equivalence partitioning.
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