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Relationships in an EER diagram become tables only when the entities participating involved in a a. mandatory 1:M relationship. b. mandatory 1:1 relationship. c. mandatory M:M relationship. d. optional 1 to mandatory 1 relationship e. mandatory 1 to optional many relationship Consider the following EER diagram 16. Converting the above diagram to tables would involve a. posting the primary key of OFFICES as a foreign key in PHONES b. posting the primary key of PHONES as a foreign key in OFFICES c. collapsing OFFICES and PHONES into one table d. creating a new composite key table called "HAVE" e. none of the above Relationships in an EER diagram become tables only when the entities participating involved in a a. mandatory 1:M relationship. b. mandatory 1:1 relationship. c. mandatory M:M relationship. d. optional 1 to mandatory 1 relationship e. mandatory 1 to optional many relationship Consider the following EER diagram 16. Converting the above diagram to tables would involve a. posting the primary key of OFFICES as a foreign key in PHONES b. posting the primary key of PHONES as a foreign key in OFFICES c. collapsing OFFICES and PHONES into one table d. creating a new composite key table called "HAVE" e. none of the above