Answer:
D) all different specific to each
Step-by-step explanation:
The spectra associated with elements (or atoms) are referred as atomic spectra which arise due to the transition of electrons within the atom from one energy level to the other. These energy levels are specific or characteristic of that particular atom. As a result, the spectra for different elements are different.
For example, although sodium (Na) and potassium (K) belong to the same group in the periodic table i.e. alkali metals, the atomic spectrum of Na falls in a different wavelength region relative to K.