Using the Sensitivity Analysis Report below, what is the optimal objective function value for this problem?

	Adjustable Cells
				Final	Reduced	Objective	Allowable	Allowable
		Cell	Name	Value	Cost	Coefficient	Increase	Decrease
		$B$12	Solution Product 1	75	0	9	1	1
		$C$12	Solution Product 2	0	-1.5	9	1.5	1E+30
		$D$12	Solution Product 3	75	0	6	3	0.6
	Constraints
				Final	Shadow	Constraint	Allowable	Allowable
		Cell	Name	Value	Price	R.H. Side	Increase	Decrease
		$B$15	Resource 1 LHS	600	1.5	600	150	50
		$B$16	Resource 2 LHS	525	0	600	1E+30	75
		$B$17	Resource 3 LHS	375	0	480	1E+30	105
		$B$18	Resource 4 LHS	150	1.5	150	7.894736842	30

	a.	$450
	b.	$675
	c.	$1125
	d.	$112.5
	e.	$1575