A major theme park is expanding the existing facility over a five-year period.

A major theme park is expanding the existing facility over a five-year period. The design phase will be completed one year after the contract is awarded. Major engineering drawings will be finalized two years after the design contract is awarded and construction will begin three years after the award of the design contract. New, unique ride technology will be used and an estimate will need to be developed to identify these costs that have no historical data.

Cost engineers who feel completely satisfied and fulfilled by their work as part of a project team are said to have reached the ______________ stage of Maslow's hierarchy of needs.