Talonique makes two products,pink polish and purple polish. Weekly demand is 50 units for pink polish, and 100 units for purple polish. Each product has to be processed at 3 different machines L, M and N. Each machine has 1000 minutes available per week. Pink polish requires 5 minutes at L, 10 minutes at M, and 5 minutes at N. Purple polish requires 6 minutes at L, 4 minutes at M, and 3 minutes at N. Where is the internal binding constraint? Select one: Machine L Machine M Machine N There is no internal binding constraint O