which one of the following best describes the purpose of the r-3 budget exhibit?

• provide a schematic display of major program milestones
• provide detailed cost information for each project under a program element in RDTE budget activies 4,5, or 7 with funding of $1 million or more in any budget year
• provide budget justification for a particular RDT&E program element
• summarize the funding requirements for a particular RDT&E appropriations account