Vice president Thomas Marshall once told the following story of two brothers. "One ran away to sea; the other was elected vice president, And nothing was heard of either of them again" Which of the following best expresses the meaning of this story?
1. Being vice president is a dead-end job that dooms a person to obscurity
2. Vice presidents are rarely seen because of the high security surrounding the office
3. Being vice president is a high-profile job that keeps a person constantly busy
4. Vice presidents are rarely heard from because they must travel constantly