1. Etiquette, decorum, propriety imply observance of the formal requirements governing behavior in polite society. Etiquette refers to conventional forms and usages: the rules of etiquette. Decorum suggests dignity and a sense of what is becoming or appropriate for a person of good breeding: a fine sense of decorum.
"a. it is a financial plan for the use of public money" is the best option from the list, but it should be noted that this plan can exist at a personal of governmental level.
