Case-Based Critical Thinking QuestionsCase 9-2Latham works in the logistics department for a large city bus system.  As routes are changed, Latham accesses the internal database to ensure all records are accurate.  The Bus Route System database includes a one-to-many relationship between the Bus Number and the Bus Routes with Bus ID as the common field.  This allows the two tables to be joined to create a query based on data from both tables:  Bus Number and Bus Routes.
The relationship between the Bus Number and Bus Routes tables is one-to-many which means that each Bus Number record is related to ____ Bus Routes record(s).

A. at most one
B. at least one
C. exactly one
D. zero, one, or more


Answer: D

Computer Science & Information Technology

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