Answer (C) is correct . In theory of constraints (TOC) analysis, the constraint (bottleneck) operation is the slowest part of the process. It can usually be identified as the one where work-in-process backs up the most. Of this manufacturer’s two operations, the one that requires the most total time is assembly.
Answer (A) is incorrect because An operation, not a product, is a constraint. Answer (B) is incorrect because An operation as a whole is a constraint, not a particular product in an operation. Answer (D) is incorrect because The operation that requires the most total time is determinable from the information given.
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