1. All the following performance metrics are suitable for reverse logistics systems, EXCEPT

a. time required for product recovery

b. all statements are examples of performance metrics for reverse logistics systems

c. fraction of packaging recycled

d. per cent product volume

e. per cent recycled materials used as input to remanufacturing

2.All the following are true about an open-loop reverse logistics network, EXCEPT

a. all statements are true about an open-loop reverse logistics network

b. it helps companies to adhere to adhere to environmental legislations

c. companies adopting this system use the recovered materials for themselves

d. the flows enter and leave at different points of the logistics system

e. the flows move from the point of consumption to sedondary markets