Why do people move through hierarchy from bottom to the top

You move from bottom to the top because someone who is broke can only earn more money.

Explanation:

The lowest levels of the pyramid are made up of the most basic needs, while the most complex needs are at the top of the pyramid. ... Once these lower-level needs have been met, people can move on to the next level of needs, which are for safety and security.

Explanation:

i dont think this is the place to ask this.

maybe uh, try talking with someone you know or like about this.

life can be tough.

b and c would be the answers