A Use Case Place Order Must Always Invoke a Related

Multiple Choice

A use case Place Order must always invoke a related use case Check Credit. How is the association between the two use cases shown?

A) By a solid line with no arrowhead or stereotype.
B) By a broken, arrowed line stereotyped with the word <<extend>>.
C) By a broken, arrowed line stereotyped with the word <<e>iclude>>.
D) By a broken, arrowed line stereotyped with the word <<include>>.