Please answer number 3 will mark BRAINLIST

Which stage of group development involves members introducing themselves to each other?

When the benefit of one particular use of a resource is greater than the opportunity cost, then that resource is which of the following? a. not scarce b. being used efficiently c. a normal good d. non-excludable

What two categories do strategic choices fall within? a. generic business strategies and cost leadership strategies b. business-level strategies and corporate-level strategies c. cost leadership strategies and corporate-level strategies d. diversification strategies and leadership strategies e. pricing strategies and cost-leadership strategies