Agreement-based decision-making: refers to the decision-making methods of units or departments with equal authority on common problems. Which of the following are agreed upon? ['The project application submitted by a forestry bureau has been formally approved after being signed by the leader of a higher authority.', 'At the official meeting of the office, after consultation and discussion, everyone unanimously approved the plan submitted by a subordinate department.', "A county's environmental protection bureau, urban management bureau, and health bureau have repeatedly discussed environmental issues, and reached a resolution after discussing the environmental protection bureau's plan.", 'The plan for purchasing office supplies in a department is signed and approved by the secretary Xiao Zhao.']