For each system, identify the BEST systems engineering lifecycle $($Agile$,$ Spiral, or Waterfall$)$ to use: A $5$G radio$/$repeater network for a nation$-$state A new artificial intelligence algorithm that will run on mobile phones to touch$-$up photos An automated factory to use lunar materials to facilitate the creation of a permanent lunar gateway A space elevator A new generation of computer processor using new manufacturing processes A new security appliance based on commodity hardware A new data center A new network switch incorporating advanced security protocols with hardware$-$based protocol acceleration and security coprocessors A next generation computer assembly factory The digital flight control system for a new airplane