A business analyst has identified that one of the use cases on a use case diagram contains a large amount of optional processing. This optional processing is so large that he has decided to remove it to a separate use case which can be called by the original use case if required. How should the original use case be linked to the new use case?
A. By a broken, arrowed line stereotyped with the word <<include>>.
B. By a broken, arrowed line stereotyped with the word <<uses>>.
C. By a solid line with no arrowhead or stereotype.
D. By a broken, arrowed line stereotyped with the word <<extend>>.
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The separate use case with optional processing would be included because the optional processing is not a use case in itself.