Electrons are grouped around the nucleus in several energy levels or shells according to Niels Bohr's model of the atom. Option C
Electrons are limited to existing at these certain energy levels, each of which is associated with a specific distance from the nucleus. Electrons can travel between these levels absorbing or emitting energy. An electron goes to a lower energy level (nearer to the nucleus) when it releases energy and to a higher energy level (farther from the nucleus) when it absorbs energy.
Within the Bohr model, the quantization of energy levels provides an explanation for the discrete lines that are seen in the atomic emission or absorption spectra.
Complete question
Which statement is true about the electrons in the Bohr model of an atom?
A: they give off energy as they jump to a higher level.
B: they cannot move from one orbital to another.
C: they exist at specific energy levels.
D: they are equally close to the nucleus.