A forecaster used the regression equationQt = a + bt + c1D1 + c2D2 + c3D3and quarterly sales data for 1996 I - 2013 IV (t = 1, ..., 64) for an appliance manufacturer to obtain the results shown below. Q is quarterly sales, and D1, D2 and D3 are dummy variables for quarters I, II, and III. 
Using the estimation results given above, the predicted level of sales in 2014 II is ________ units.
A. 155.5
B. 127.5
C. 154
D. 137.5
E. none of the above
Answer: C
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