Question: How can the CODASYL framework correctly model a family tree, taking into account that every child has to have (at least) two parents? a. Use

How can the CODASYL framework correctly model a family tree, taking into account that every child has to have (at least) two parents?

a. Use a set type “is parent of” between record types “parent” and “child”.

b. Use a dummy record type “is parent of” between record types “parent” and “child”.

c. List the parents as a vector in the data item set of every child.

d. We cannot model this constraint with the CODASYL framework.

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