The BEST way to handle the situation is to work with central warehouse to arrange a predictable delivery time. Whereas, the WORST way to handle the situation is to change the delivery system so that goods are delivered only once a month.
So, if you are the manager of a retail store, and the shipments of the products you sell arrive once a week from the central warehouse you need to pull a couple of your workers from inside the store who can unload the shipments. As the truck arrives any time in a day, this creates problem as the workers are not availabe whenever the shipment arrives.
The best way through which one can handle the situation is by working with central warehouse to get appropriate information on the delivery date and so that the workers are made available accordingly. Whereas, the worst way to handle this situation is by changing the delivery system.
Hence, options 2 and 3 are correct.
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