sales (y) by using $ advertising (x 1 ) and $ salary of sales representatives (x 2 ) across all the branches. You obtained the following regression function: y = XXXXXXXXXX5x 1 -1.6x 2 If the...

sales (y) by using $ advertising (x₁) and $ salary of sales representatives (x₂) across all the branches. You obtained the following regression function: y = 7800 + 8.5x₁-1.6x₂

If the advertising budgets of one of the branches of the corporation is now $45,000 (which is 10% more than before) and the salary of sales representatives is now $8,500 (which is 20% less than before), then the predicted sales will

A. decrease by less than 10%

B. increase by more than 10%

C. be the same

D. increase by less than 10%