3 Crucial Supply Chain Lessons from COVID-19 Vaccine Rollout - Supply Chain 24/7 (supplychain247.com Question 1 (20 marks) In relation to the case study discuss the barriers that may occur in a buyer-seller collaboration. Question 2 (20 marks) With relation to the case study, discuss any FOUR strategies to counteract any conflict in supply chain management Question 3 (20 marks) Different people, organisations and cultures see ethics in different ways but there is widespread agreement that certain behaviour is unethical. Provide a recommendation of 5 guidelines that will be necessary for the vaccine rollout