American Spinners, a Large Automobile Parts Supplier, Keeps Track of the Demand

Multiple Choice

American Spinners, a large automobile parts supplier, keeps track of the demand for a particular part needed by its customers, automobile manufacturers.The time series plot below shows monthly demand for this part (in thousands) for a five year period.The dominant component in this time series is ________________________ .

A) cyclicity.
B) randomness.
C) seasonality.
D) systematic.
E) None of the above.