Here are statistics on order sizes of megalith construction supply's shipments of two kinds of construction materials last year. which order sizes have greater variability?

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

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answer/// sequence of operations that requires the longest time for completion';