Answer the following question given this paragraph: 

Basic to Bohr’s model is the idea of energy levels. Energy levels are areas located at fixed distances from the nucleus of the atom. They are the only places where electrons can be found. Energy levels are a little like rungs on a ladder. You can stand on one rung or another but not between the rungs. The same goes for electrons. They can occupy one energy level or another but not the space between energy levels.


Q: What are the areas located at fixed distances from the nucleus of the atom?

 Choices:

- molar levels

- atomic regions

- orbit points

- energy levels

A:
energy levels
