Case-Based Critical Thinking Questions

Multiple Choice

Case-Based Critical Thinking Questions
Case 9-3
Taylor manages a database for a regional hardware enterprise with 10 stores in 2 states.  The hardware store wholesales to contractors. The database includes these tables (among others) : tblContractor, tblProducts, tblBilling, tblInvoices.
-Taylor has added the tables tblContractor, tblBilling, and tblInvoices to the relationships window. He has created a relationship between the tblBilling and tblContractor based on the ContractorID field.  What type of relationship is this?

A) one-to-one
B) one-to-many
C) many-to-many
D) one-to-none