Which statement is true regarding the difference between a civic obligation and a personal obligation?

A civic obligation is something you must do for your city, and a personal obligation is something you must do for yourself.
A civic obligation is something you want to do for your city, and a personal obligation is something you might to do for yourself.
A civic obligation is something you must do by law, and a personal obligation is something you organize for others to do.
A civic obligation is something you want to do for other petitioners, and a personal obligation is something you want to do when you have time.