Choose the correct answer:

a$.$ The many to many relationship between Employee and Vendor has been broken using PO Header table

b$.$ The many to many relationship between Building and PO Header has been broken using PO Detail table

c$.$ Both of above

d$.$ None of above

Q$9)$ Choose the correct answer:

a$.$ Each Employee may have many PO Header but each PO Header belongs to one Employee

b$.$ Each Employee may have many PO Header but each PO Header belongs to at most one Employee

c$.$ Each Employee may have many PO Header but each PO Header belongs to at least one Employee

d$.$ None of above

Q$10)$ Choose the correct answer:

a$.$ The connectivity between Employee and PO Header should be strong

b$.$ The connectivity between Vendor and PO Header should be strong

c$.$ Both of above

d$.$ None of above