Looking at the below excel report for an LP problem, Answer the following question: What is the slack for resource "Labors Hours"? Variable Cells Final Reduced Objective Allowable Allowable Name Value Cost Coefficient Increase Decrease Decision Variables X 100 0 50 1E+30 2 Decision Variables Y 0 -2.5 60 2.5 1E+30 Constraints Name Labor Hours Units demanded Raw material Final Shadow Constraint Allowable Allowable Value Price R.H. Side Increase Decrease 800 6.25 800 160 800 100 0 120 1E+30 20 400 0 500 1E+30 100 Oa0 O b.6.25 O c. 160 O d.800 Oenone of the above