Hot Anushka in Golden Bra bob show

What elements make up the Object X, based on the spectrum given above? Select all that apply.

1.Question 1

The emission spectrum of Object X is shown below:

On the other hand, the emission spectra of hydrogen, helium, oxygen, calcium and sodium are given below:

(Image Credit: NASA)

What elements make up the Object X, based on the spectrum given above? Select all that apply.

Hydrogen

Helium

Oxygen

Calcium

Sodium

Hydrogen and sodium