What Is the Foreign Key in the Following Table? Classes

question 9

Multiple Choice

What is the foreign key in the following table? Classes (ClassID, ClassName, ClassDate, StartTime, EndTime, ClassPrice, InstructorNum)

• A)ClassID
• B)ClassName
• C)InstructorNum
• D)ClassPrice

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Definitions:

Trailer

A transport vehicle without a motor, designed to be towed by another vehicle.

Tractor

A heavy-duty highway truck designed for towing trailers. Also any of a number of different types of farm and heavy equipment utility vehicles.

Tandem Axle

A pair of axles situated close together in a vehicle to support more weight than a single axle and improve stability.

Wheel Base

The distance between the centers of the front and rear wheels of a vehicle, influencing stability, handling, and ride comfort.