Briefly discuss the at least four aspects that a project manager must consider before closing the project in the case study (McKinsey and Company. nd, The risks and challenges of the global Covid19 vaccine rollout, https://www.mckinsey.com/business-functions/risk-and-resilience/our-insights/the-risksand- challenges-of-the-global-covid-19-vaccine-rollout) In your response, briefly describe what the closure phase entails. Expert