Using the output below, predict the amount of monthly sales if monthly advertising expresses is $1,173 SUMMARY OUTPUT Regression Statistics Multiple...

Using the output below, predict the amount of monthly sales if monthly advertising expresses is $1,173

SUMMARY OUTPUT    

Regression Statistics    

Multiple R 0.9880    

R Square 0.9762    

Adjusted R Square 0.9738    

Standard Error 868.4866    

Observations 12    

                                                Coefficients        Standard error           P-value

Intercept                                          759.57              2.991435587           .2217390932

Monthly Advertising Expenses         1.91               0.482113498            .0000000019

a) -$3,000

b) -$890,978

c) $890,978

d) 3,000