A Consulting Firm Estimates the Following Quarterly Sales Forecasting Model $Q _ { t } = a + b t + c D$

Multiple Choice

A consulting firm estimates the following quarterly sales forecasting model: $Q _ { t } = a + b t + c D$ The equation is estimated using quarterly data from 20010I-2020III (t = 1,...,43) .The variable D is a dummy variable for the second quarter where: D = 1 in the second quarter,and 0 otherwise.
The results of the estimation are: Given the above,these estimates indicate that the second quarter change in sales is

A) 22.5 units higher in the second quarter than in the other three quarters.
B) 1.86 units higher in the second quarter than in the other three quarters.
C) 2.00 units higher in the second quarter than in the other three quarters.
D) 24.5 units higher in the second quarter than in the other three quarters.