The Is Married To relationship in Figure $2-12$a would seem to have an obvious answer in Problem and Exercise $2-33$d$-$that is$,$ until time plays a role in modeling data. Draw a data model for the PERSON entity type and the Is Married To relationship for each of the following variations by showing the appropriate cardinalities and including, if necessary, any attributes:

a$.$ All we need to know is who a person is currently married to$,$ if anyone. $($This is likely what you represented in your answer to Problem and Exercise $2-33$d$.\}$

b$.$ We need to know who a person has ever been married

to$,$ if anyone.

c$.$ We need to know who a person has ever been married to$,$ if anyone, as well as the date of their marriage and the date, if any, of the d issolution of their marriage.

d$.$ The san$1$e situation as inc, but now assume $($which you likely did not do in c$)$ that the same two people can remarry each other after a dissolution of a prior marriage to each other.

e$.$ In history, and even in some cultures today, there may be no legal restriction on the number of people to whom one can be currently married. Does your answer to part

c of this Problem and Exercise handle tllis situation or

must you make some changes $($if so$,$ draw a new ERD$).$