While validating a FAST diagram, the team tests a pair of functions and finds the "why" answer to the right-hand function does not lead back to the left-hand function. What should the team do?
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A
Rework the function placement because the How-Why logic must hold in both directions
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B
Accept the diagram because only the "how" direction requires validation
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C
Move both functions above the critical path as same-time functions
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D
Delete the right-hand function since it failed the test