Need hep quickly with this TRUE or FALSE, thank you!

T_F Ergonomics is the study of how employees interact with the work environment. T F Supply Chain costs in manufacturing and transportation can typically run as much as 90% of sales. _ T _F A reduction in supply chain costs can yield an increase in profit, but not as easily as selling more product. _ T _F The more a company relies on its supply chain, the more risk. Therefore, organizations should have mitigation tactics like redundancies, political risk insurance, currency hedging etc. to reduce this risk. _ T _F A safety stock approach is used if demand fluctuates and customer satisfaction is key concern. a T _F A fixed period ordering system can be used when ordering at convenient times is desired, the items ordered are routine, and stockouts are not that harmful. _ T _F Aggregate planning for sales and operations falls into the long-range planning horizon. _T__F The Chase Strategy mixes potential aggregate planning strategies to achieve price discounts and other bargains