The case study states that $$the priority with dark stores lies in creating a practical design to ensure everything is accessible for store staff$.$ Standardisation can reduce costs. Which one of the following is an example of how cost saving in purchasing inventory can be achieved in a dark store through the concept of standardisation?

By ordering larger quantities of standard items at a time, opportunity for negotiating larger quantity discounts is created.

Offering different ranges of standard items would require standard shelving in the dark store and fewer order pickers.

By buying more standard inventory items, inventory carrying costs in the dark store can be reduced.

By slowing down the management of orders in the dark store, cycle time and costs can be decreased.