Which statement most appropriately conveys the purpose of a memorandum? a.) group leaders must be prepared for a practice emergency evacuation of the building this wednesday at 10: 00 a. m. b.)if you are a group leader, you should be getting prepared for the emergency evacuation drill coming wednesday morning. c.) plan to participate in an orderly manner during the emergency evacuation drill this wednesday that will occur at 10 a. m. d.)we will have an emergency evacuation drill this wednesday morning at 10: 00, in which you are expected to participate.